CNC machining is about to change into a brand new form, process will be composed into an integrity to encounter the customer’s need. CNC is the abbreviation of Computerized Numerical Control, which is an automatic machine tool to replace the program control system. CNC machining is able to solve the problem of complex, precise, small batch, and multi-variety parts processing ably, for it’s a flexible, high efficiency automatic machine tool. It represents the development direction of modern machine control technology and is a typical mechatronics product.

New technology:

The promotion and popularization of five-axis linkage processing technology is the direction of the the future development.

Complex curved surface machining is a common process in industry, and many key-parts structures and processing techniques of ship, plane, rocket, satellite and spaceship need certain speciality and processing difficulty, while traditional cnc machining is not capable of finishing it. So a five-axis linkage, high-speed, high-precision CNC machine tool must be used to meet the processing requirements. The the features of five-axis linkage CNC machine are as widely used, high processing accuracy and work efficiency, which just as to match the future CNC machining trend.

New format:

The demand for single machine tools that complete a single process is gradually reduced, and the demand for flexible manufacturing cells that complete multiple processes is gradually increasing

As the demand for single machine tools is declining, the flexible manufacturing cells are getting more popular.The flexible manufacturing cell formed as a single or many five-axis machining centers or composite machining centers with small automated logistics devices so as to meet the requirements of high-efficiency processing of multi-variety and small-batch parts.But the intensified competence among downstream enterprise, the rising costs, and especially the rising cost in labor which is in a lager lack of than before, the three factors led to the emergence of more unmanned manufacturing systems. And at the same time, downstream customer’s rising demand of flexible manufacturing cells indicted an increase of the processing market with many varieties and small batches. The flexible manufacturing unit will appear as a complete set of equipment of “CNC machine tools + small logistics devices (industrial robots, automatic pallet exchange, truss manipulators, etc.)” to solve the pain points of the sharp rise in labor production costs, and achieve unmanned.

New mode:

Development from single product sales to intelligent manufacturing system integration solutions.

Over the last few years, downstream enterprise has put new requirements to CNC machines provider, and they are more inclined to cooperate with the providers who could provide a complete set of manufacturing equipment, a set of perfect solution for project and show abilities for more complex projects underwriting and automatic transforming. The provider who owns automatic, flexible, and intelligent production line in manufacturing can please custom CNC machining, so on keep customer’s rely on him. Besides, national and local policies inspire manufacturing enterprises to develop into automatic mode, and it stimulate the transformation of intelligent manufacturing equipment suppliers to intelligent manufacturing system integration CNC machining service providers, which includes custom CNC machining, service 3d printing service and surface finishing service,etc.

CNC turning is in a going-up demand, and it’s getting more important in Industrial production. with access to a network of over 2,000 Europe-based manufacturers with CNC lathes and turning centers, Xometry provides us with the capacity and capabilities for various project needs, while also delivering the most competitive pricing and lead times. Good machine learning-trained technology also provides instant manufacturability feedback to ensure that our part fits the requirements we need and is optimized for the CNC turning process. If you are looking for CNC turning service I do recommend you JTR CNC Turning service.

Tungsten carbide nozzle is made of precision machinery and cemented carbide material (superhard alloy). The bending resistance is 2300n / mm and the hardness is hra90 degree. When machining XYMJ cemented carbide nozzle, it provides precision grinding and surface treatment to achieve the hole roughness of ra0.1 and the roughness of both ends of R is Ra0.025. There is a scientific radius of curvature design at the two entrances. This design ensures the smooth passage of the thread. Due to the whole material processing, there is no elevation angle on the drilling hole, and the bending and blocking phenomenon has been improved compared with ruby nozzle. Carbide nozzle is made by hot pressing and sintering hot straight hole and hill hole. Because of its hardness, low density, excellent wear resistance and corrosion resistance, tungsten carbide nozzle has been widely used in sand blasting and shot peening equipment, which ensures that the product can be used in the best air and abrasive for a long time.

Advantages

Carbide nozzle and other nozzles: common nozzle materials include cast iron, ceramics, tungsten carbide, silicon carbide, boron carbide. Ceramic nozzles are only used in non aggressive light equipment and abrasive in explosion cabinets. Tungsten, silicon, and boron carbide are the most popular blasting applications due to their long service life. The following is a list of carbide nozzles and their comparison with other nozzles.

Approximate service life per hour

Nozzle material: steel shot / sand sand / alumina

Carbide nozzle 500-800 300-400 20-40

Alumina nozzle 20-40 10-30 1-4

SiC nozzle 500-800 300-400 50-100

Boron carbide nozzle 1500-2500 750-1500 200-1000

Types

The shape of nozzle hole of cemented carbide determines its air flow pattern. The nozzle generally has a straight hole or a limiting hole, a hill hole.

1. Straight hole : the straight hole nozzle forms a sealed air flow mode for on-site or internal air flow. This facilitates the realization of small tasks, such as cleaning parts, weforming, cleaning handrails, steps, plaques, or stone carvings and other materials.

2. Traditional long hill design

3. The orifice nozzle forms a sufficient airflow pattern, and the grinding speed can be increased up to 100% for a given pressure. The best choice of Venturi surface is to improve the productivity of the nozzle. Compared with the straight hole nozzle, the productivity of the long mound nozzle can be increased by 40% when the abrasive consumption is about 40%.

4. Double venturi: Double venturi and wide throat nozzle are the enhanced version of long venturi nozzle. The double dome style can be thought of as having two nozzles between a set of slits and holes to allow the incoming atmosphere to enter the downstream section. The outlet end is also wider than the traditional nozzle. These two modifications are made to increase the size of the airflow pattern and minimize abrasive loss at a speed.

5. Wide throat nozzle : wide throat nozzle is equipped with a large outlet and a large divergent outlet. When matched with the same size hose, they can increase productivity by 15% over a smaller throat nozzle. When wide throat nozzles also have large divergent holes, they can use a lower abrasive mode under higher pressure, and the yield can be as high as 60%.

For some lattice bridges, the back of the flange, the inside of the pipe type of shrink point, can effectively use angled nozzles. Many operators spend a lot of time and abrasive to wait for a bounce to complete the job. The use of angle nozzle as long as hair less time is always able to repair quickly, reducing the overall time.

Applications

The advantages of tungsten carbide nozzles include economy and longer service life when it is unavoidable to rough load and unload and media used to cut abrasives (glass beads, steel balls, steel sand, minerals or cinders). Traditionally, cemented carbide is the preferred material for tungsten carbide nozzle.

Carbide nozzle is widely used in surface treatment, sandblasting, spray painting, electronic, chemical process and other industries.

Cemented carbide nozzles are also used in different applications, such as for wire straightening, wire guides and other aspects.

XYMJ has more than 20 years of experience in researching and manufacturing tungsten carbide products such as carbide wire drawing dies, carbide plates & strips, tungsten carbide mining tips, carbide buttons, carbide circular blade and other much more customized tungsten carbide wear parts. XYMJ manufactures tungsten carbide rods with 100% virgin material, advanced sintering furnaces, high-precision grind machines, high stability and high performance guaranteed.

Advantages of XYMJ tungsten carbide rod

1. It adopts high-quality ultra-fine tungsten carbide and imported cobalt powder as raw materials.

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2. Standardized production technology using the advanced low-pressure sintering technique.

3. It has high strength and high hardness.

4. It has excellent red hardness, good wear resistance, high elastic modulus, high bending strength, superior chemical stability with high resistance of acid, alkali, high-temperature oxidation, superb impact resistance, low expansion coefficient.

5. It is manufactured with high-tech precision advanced equipment which is a low-pressure sintering furnace.

6. It is produced by a unique new process with the vacuum high temperature and high-pressure sintering. The pressure sintering is adopted at the finish time, which greatly reduces the porosity, improves the density and the mechanical properties of the product.

7. carbide rod has many material grades, which can adapt to different applications with complete specifications and precious carbide blank size which can reduce processing volume and improve productivity.

Tungsten carbide rod has the advantages of good HRC, high strength, excellent wear resistance, high chemical stability, etc, which is one of the preferred materials of the drill, end mills and milling cutters, widely used in various machining industries. XYMJ is one of the most trustworthy carbide rod manufacturers, with premium quality products, various types, high-precision equipment and competitive prices.

Tungsten carbide rod, also called carbide round bar, is the preferred material for metal cutting tool manufacturing, widely used in the industries which has high requirements for wear-resistance, corrosion-resistance and high-temperature resistance. It has a lot of outstanding performance.

Tungsten carbide rod, as named as cemented carbide rod, is a high-hardness, high-strength and high-hardness material which has a major raw material of WC, with other metals and paste phases using powder metallurgical methods through low-pressure sintering.

Applications

Carbide rod is mainly suitable for drill, end mills and milling cutters, widely used for cutting, stamping and measuring tools, such as the micro-drill of the PCB industry, the electrode rod of the photoelectric communication, tungsten steel drill bit, drill handle, push rod, precision wear-resistance parts of the mechanical processing industry. It is the best material for the CNC milling cutter and machining cutter with hole.

carbide rod mainly is applied to the precision cutting of non-ferrous metals, YG6X and YG10X which are submicron grain grade, fiberglass reinforced plastic, titanium alloy, YG8X which is ultra-hard steel fine grain grade.

The Categories Of Tungsten Carbide Rod

Tungsten carbide rod with straight holes is available, including one, two, three holes, which has a spiral straight line with 30 degrees or 40 degrees or twisted. carbide rods also has the type of non-hole.

According to the structure, a tungsten carbide rod can be classified into a PCB tool, a solid tungsten carbide bar, a single straight-hole bar, double straight-hole bar, a two-spiral bar, three-spiral bar, and other types.

According to the molding process, carbide rods can be classified into two types of extrusion molding and compression molding. The difference is that the extrusion carbide rod and bars have a beautiful appearance, easy for grinding processing. The advantage of the molded bar is that the density is relatively uniform, but it is not conducive for grinding processing.

For more professional introduction, please visit the article page of tungsten carbide rod as the preferred material for metal cutting tool

In most cases, cemented carbide products will have a good surface finish, allowing machining with super fast speed, much higher than high-speed steel and other tool steel, bearing higher temperature. Cemented carbide tool will have superior cutting performance with excellent wear resistance.

1. Cutting tool material

Cemented carbide adopted as the cutting tool material, is the widest application. Among the carbide tools, the tungsten cobalt carbide is suitable for the cutting of black metal, non-ferrous metals and processing of non-metallic materials, such as cast iron, cast brass, colloidal wood, etc. Cemented tungsten titanium cobalt is applied for steel and other black metals processing. In the same kind, there is more cobalt content, suitable for rough machining and less cobalt content is used for fine machining. Universal cemented carbide has a much longer service life than that of stainless steel which is difficult for processing.

2. Mould material

Cemented carbide is mainly used for cold wire drawing dies, cold punching dies, cold extrusion mode, cold heading dies and other cold stamping molds.

Under the wear-resistant working conditions which have a strong impact, the tungsten carbide cold heading mould is required to have a good impact toughness, fracture toughness, fatigue strength, bend intensity and excellent wear resistance. Usually, among grades of high cobalt and medium, crude granules, the YG15C is commonly adopted.

In general, the relationship between the carbide wear resistance and carbide toughness is contradictory. The increase in wear resistance will result in a decrease in toughness and the increase in toughness will inevitably lead to a decrease in wear resistance. Therefore, when choosing a cemented grade, it is necessary to meet specific usage requirements based on the processing objects and processing conditions.

If the selected grade is easy to occur early cracks, it is advisable to use a grade with high toughness. if the selected grades is easily damaged due to the early wear, it is appropriate to choose a grade with a higher hardness and better wear resistance. The following grades of YG15C, YG18C, YG20C, YL60, YG22C, YG25C have a gradual decrease in hardness and wear resistance and gradually improving toughness.

3. Measuring tools and wear parts

The cemented carbide is adopted in the wear surface inlay and parts of the measuring tools, precision bearing manufactured by grinding machine and the Cemented carbide wear parts such as guide bar, lathe center, valve seat.

Cemented carbide is a composite, the main components of which consists of the powder of refractory carbide like tungsten carbide, titanium carbide through the binder metal powder such as cobalt, nickel, etc. It is a cemented composite obtained through the powder metallurgical method. It is mainly used to make high-speed cutting tools for hard, tough materials, cold working dies, measuring tools, high resistant parts with high stability and free from vibration.

The hardness of the cemented carbide at normal temperature can reach HRA of 86 to 93, equivalent to HRC of 69 to 81. High hardness can be maintained at 900 to 1000 ° C with excellent wear resistance. Compared to high-speed steel, the cutting speed can be 4 to 7 times higher with 5 to 80 times longer life. The hard material of 50 HRC can be cut through carbide products.

In addition to the high hardness, wear-resistance cemented carbide has a series of high performance such as good toughness, heat resistance, high corrosion resistance, high elastic modulus, etc, which can be widely used as cutting tool materials, such as turning tool, milling cutter, planner tool, drill bit, etc., suitable for cutting cast iron, non-ferrous metals, plastic, chemical fiber, graphite, glass, stone, ordinary steel, heat-resistant steel, stainless steel, high manganese steel, tool steel and other much more difficult materials. Tungsten carbide wear parts, mechanical parts and carbide wire drawing dies have advantages of high resistance of high-temperature, friction, corrosion. In various industrial applications, tungsten carbide is an ideal choice for replacing steel.

Grades Of Cemented Carbide

YG6, YG6X, YG8

Wear resistance, high strength, suitable for under ordinary stress conditions, manufacturing for cemented carbide ball. It can be used for forming tools, carbide nozzle, spool, valve seat, rotary burrs, seal ring, measuring tools, fixture, mechanical part accessories, etc.

YG11C, YG11

Excellent wear resistance, good impact resistance, used for high voltage nozzle, lining, bushing in the industries of oil, chemical, machinery.

YG15, YG15C

High strength and toughness, applied for under large stress, manufacturing for seal ring, different shaped structural parts, mechanical accessories and stamping dies.

Y20 YG20C

The type of tungsten carbide is suitable for standard parts, bearings, tools and cold heading, cold stamping mould.

For more information about cemented carbide, please visit the article page of comprehensive learning of cemented carbide.

Solventless lamination machine has fast speed and high efficiency but also means having high risks in the absence of deviations in process conditions. The most difficult factor is the lag phenomenon of composite materials quality performance. Therefore, the composite process is also known as a special process, how to minimize the risk of solvent-free composite?

1.The Necessary Small Process Sample

Changes in raw materials and process conditions, which will lead to the quality problems of the batch. For example, formulating film material, printing ink type, type adhesive, and so on. At present, the raw material quality of different suppliers is uneven. It is not easy to replace each other, moreover, film materials, ink, adhesives, process conditions, still matched, such as solvent-less.

For example, -oh which is now widely used in the polyurethane ink resin, consumes a certain amount of rubber curing agent and the degree of consumption is related to the ratio of the ink layer and the thickness of the resin in the ink layer. The adhesive layer of the ink layer portion does not appear.

After the sample test has been passed, technical documents should be formulated in strict accordance with the established process and the raw material supplier will provide a stable formulation. If the raw material formulation or process conditions have changed, the sample should be re-tested.

2. Comprehensive Quality Inspection

For quality inspection, it should focus on the composite film appearance, peel strength, heat sealing strength, heat sealing temperature, solvent residue, At the same time, food packaging, pharmaceutical packaging is different in terms of sample treatment, soaking method, soaking conditions (time/temperature), indicator units.

Today, food packaging safety is widely concerned that the safety test of packaging materials is also one of the important factors of reducing business risks.

3.Solvent-free Composite Technology

The maximum characteristics of solventless composite technology, materials for solvent-free composite and drying composite, are low initial viscosity, small coating. Various quality problems have occurred primarily related to these two factors. Therefore, the experience gained through dry composite methods can’t be simply transplanted into a solventless composite.

For example, when the glue flow at both ends of the gluing baffle is insufficient, it is easy to aging, resulting in reduced glue and insufficient peel strength at both ends of the composite film with the uneven glue. The side of the baffle should be stirred regularly.

At the same time, it is necessary to ensure the correctness of the ratio of the two-component binder and the curing agent. The metering pump blocking can result in a ratio error of the two-component gels and the curing agent, For example, a batch accident in which the curing agent is insufficient, resulting in insufficient dryness of the composite film, less than the peel strength and low heat sealing strength. So correctly detecting the refractive index of the rubber, monitoring the accuracy of the ratio, avoiding the situations, which including maintenance that cannot be maintained, the unbalanced binder proportion and no alarm for mixing pump, are necessary for improving solventless composite technology.

The solventless lamination is more and more widely used in the flexible packaging industry with the advantages of high efficiency, low cost and environmental friendly. Learning how to reduce the bulk loss and minimize the risk of solventless composite can greatly do a favor for the better operation of a solventless laminator.

Solvent-free composite technology is mainly adopted for solventless lamination machines. Significant advantages of the solventless composite process are reducing cost, high efficiency and energy saving, improving production safety, stability and product quality.

However, due to the immature solventless composite technology , and there are still some technical risks that are easily overlooked in the application for a flexible packaging company, leading to quality problems. Now we summarize three common risk control points of solvent-free composite technology.

1. The Technical Risk Of Increasing A Glue In Solventless Composite

Solvent-free composite adhesive with A glue and B glue, the adhesive mixing ratio is generally the weight ratio of A glue and B glue, rather than the volume ratio of both. The mixing ratio of the binder is usually determined by the adhesive manufacturer, as the proportion of the binder in different brands is generally different. The common ratios of A glue and B glue are 100: 80,100: 75,100: 50,100: 45. However, in the actual solvent-free composite production of flexible packaging companies, the ratio of the two-component adhesive will be disordered, which will affect the solventless quality of flexible packaging products.

Case

After printing, solvent-free compounding, the flexible structure of OPP / VMPET / PE has no quality problems.

The structural composite flexible bag is a low viscosity-free solvent-free binder brand and the proportion of A glue and B glue in actual composite production is 100: 67. When analyzing the cause of failure, we find that the bag is curled and the inner binder is not dry. Originally, because the composite film maturity is incomplete, prolongs the maturation time and then cuts into a bag. The problem of bag curling still exists and the opening performance has also deteriorated.

Combined with a ratio of A glue and B glue, it is not difficult to find that the bag is mainly caused by the excess of the A glue, because the solvent-free composite film is usually large and the effect of prolonging maturity is not obvious, water must be introduced into the cross-linking curing reaction with the -NCO.

The much more efficient methods are to rewind the composite film roll on a slitting machine and then increase the humidity of the workshop environment to absorb some moisture between the layer and the surface. The composite film, during aging, water will penetrate into the adhesive layer and reacted with an excess-NCO cross-linking curing reaction, so that the self-adhesive layer will be further completely cured, thereby effectively release the curling of the flexible packaging bags.

2. Risk Control For The Attenuation Of PE Membrane Peel Strength At Solventless Composite Material

A certain amount of linker is added to the film blow molding for reducing the friction between the film and the film, the film and the device, so that the surface of the film will be smoother, in order that the composite film operates successfully in the production process. Under normal circumstances, an excess sliding agent has added appropriately in the PE film, which can solve the phenomenon of abnormal increase in the friction coefficient of the solvent composite film after a certain extent, but this can also cause peel strength to be weakened, which is serious. When the aging is completed, the peel strength of the composite film is exceeded and in most cases, the peeling strength is reduced during the process of placing the composite film or during the cycle of the flexible packaging.

Case

The composite structure is a BOPA / PE film

Main parameters: a brand solvent-free adhesive, the amount of glue is 1.5 g / m2, aged at 40 ° C for 24 hours. The tracking and detection data of the peel strength of the composite film is as follows:

On October 13, the lateral peel strength was 15.37 N / m.

On November 4, the lateral peel strength was 4.62 N / m.

After the complex layer is peeled off, the surface of the PE film has a mist-like substance that can be wiped off.

On November 18, the lateral peel strength was 4.69 N / m.

It is closed to the final test data indicating that the peel strength of the composite film has reached a stable value.

Typically, the flexible packaging company only detects the peel strength of the composite film shortly after maturity. The composite film is rarely tracked during the process or the peel strength in the soft bag, which should be noted.

The migration of the solventless adhesive in the PE film produces a slipping agent, which is the main reason for the decrease in the peel strength of the composite film. We recommend a solvent-free adhesive. Add the formulated slipping agent to the formulation, so that the friction coefficient of the PE film in the solvent-free compound can be solved, and the problem of decrease in peel strength can also be solved.

3. Pay Attention To Identifying The Smell Characteristics Of The Solventless Adhesive

There are many factors that produce scent in the flexible packaging bag, such as residual solvent, ink resin, thin-film raw material resin, adhesive, etc. Although there is no solvent residue in a solventless composite, the resins and formulations in the solventless adhesive have a certain odor feature and some have effects after composite curing, even after the packaging. For flexible packaging companies, it is necessary to pay attention to the identification of the solventless composite film after the smell and prevent the problem.

a. In GB / T 10004-2008 standard, the detection method of packaging sensory indicators is specified, which is opening the box and lining the packaging film and immediately detect the smell.

b. Usually take a certain area of the composite films, cut into a 500 ml glass bottle, baked for 30 minutes at 60-80 ° C for detecting smell. It is also possible to seal the package in the air or actual content, rotating at a temperature of 50 to 60 ° C, tearing the package, and feel whether there is odor.

The odor of the composite film is mainly from a solvent-free adhesive. Therefore, the odor feature of the general solventless adhesive can be identified by the following method.

a. Take a certain amount of A glue and B glue with different brands for sensory testing and comparison.

b. Add a mixed solvent-free binder according to the specification to the glass bottle. Plastic film is placed in the bottom of the bottle and the cured adhesive is easily taken out and the crosslinking reaction is under 40-50 ° C. After an hour, the odor characteristics are determined. This method is more suitable for practical applications, including the odor characteristics of the resin itself.

Solvent-free composite technology is a production technology which is more and more widely used in the flexible packaging industry with the advantages of safety, environmental protection, saving costs. Through the learning of the common risk control points of solventless composite technology, the efficiency of solventless lamination will be improved.

Tungsten carbide plays an extremely important role in the machining process because it offers higher wear resistance than high-speed steel, which can withstand higher working temperatures and can be very well optimized to meet the requirements of various processes. It can meet high demands for the performance of cutting tools. According to the shapes of customized tungsten carbide cutting tools, the carbide cutting tools are classified into round blades, ring blades, long blades, arc blades, toothed blades, trapezoidal blades, wave blades, serrated blades, disc blades, and special-shaped blades, etc.

Advantages Of Tungsten Carbide Cutting Tools

1.Improved durability and wear-life, up to 600% better than standard steels.

2.Greater productivity and less down time due to fewer blade changes.

3.Cleaner and more precise cuts due to reduced friction.

4.Reduction in start-up and end of line waste.

5.Better overall cutting performance in high heat and high speed cutting environments.

Tungsten Carbide Rotary Burr

Tungsten carbide rotary burrs have been used widely in the shipping construction, auto engine porting and foundry fabrication. With its high rotating speed and hardness, it can machine a lot of different materials, such as cast iron, carbon steel, alloy steel and non ferrous material. High life service of product is warranted for virgin and excellent raw material which is one of most critical factors to the carbide burr’s life.

Carbide rotary burrs can be applied with both electrically-powered and pneumatically-powered hand-held tools to cut various types of materials including aluminum, brass, titanium alloys, cast iron, copper, etc. They can be widely used for pneumatic, electric drive tools.

Various Types Of Materials Can Be Cut With Tungsten Carbide Burrs

Aluminium

Brass

Titanium alloys

Cast Iron

Copper

Zinc alloys

Types of alloy steel

Bronze

Various plastics

Nickel

Stainless steel

Tungsten Carbide Brazed Tips

Tungsten carbide brazed tips can be used for drilling soft rock formations under F=8, hard and supper hard coal formations, natural stone materials, bricks and concrete walls. For special applications, specific materials can be adapted to satisfy customers’ requirements. XYMJ can supply various types of tungsten carbide brazed tips including A type, B type, C type, D type, E type, K type, etc.

Tungsten Carbide Circular Blade

Tungsten carbide circular blade can be applicable to various industries and fields ,the products are widely used in ceramics, printing machinery, paper, carton, paper tube, forestry, plastic machinery, food machinery, textile, electronics, light industry, aluminum foil copper foil, metal film, tobacco, cigarette materials, packaging materials, BOOP film, edge sealing, seal, bottom sealing machine, wood processing, food packaging, wire and cable, steel smelting, shipbuilding, chemical, textile, plastics, leather, plastic crushing industry and other industries.

Features

(1) Less knife consumption costs.

(2) Strictly quality control for excellent valve.

(3) High precision, high intensity.

(4) Excellent hardness,small thermal deformation.

(5) Matched to their applications.

(6) Reduce unsurpassed edge quality.

(7) Increased blade durablity and reduced retooling time.

(8) Excellent cutting quality,stable and reliable cutting performance.