Posted by: hannahgwendolyn at 09:40 AM | No Comments | Add Comment
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Cemented carbide saw blade is consumable product, have its service life, a lot of enterprises think when cutting off the processing, if the use period is not reached, will not be replaced, can not be used directly! Indeed, this is what all businesses are doing, thinking it's normal and reasonable, but not knowing it's a very lazy way of doing it.

If the service life of carbide saw blade is 40 square meters, it should be replaced when it is cut to 20 square meters. In this way, after rest, at least 30 square meters can be cut.The saw blade that cut acrylic USES and the saw blade that cut aluminium alloy is used commonly in the construction of modern society civilization construction, building site, door window factory, radiator factory, furniture factory, handicraft factory, plank factory is indispensable tool, a lot of customers can have such doubt, saw blade is general? Cutting acrylic with the saw blade can be used to cutting aluminum alloy, the same cutting aluminum alloy saw blade saw blade can be used to cut acrylic,? The answer is no, no, yes, really can't, some customers only one machine, too trouble in saw blade, cutting aluminum alloy with a special cutting aluminum alloy saw blade, cutting acrylic and used special acrylic cutting saw blade, to switch to delay time, affect production, today will give you analyze, why cutting acrylic saw blade and cutting aluminum alloy saw blade can not be universal.

First cutting acrylic and cutting aluminum alloy saw blade, because the acrylic and aluminum alloy material is different, different features, so acrylic and aluminum alloy saw blade saw blade with alloy is different, is not of the cutting tools, acrylic is crisp, aluminum alloy strength is big, cause choose different alloy saw blade, second, the density is different, acrylic saw blades and aluminum alloy saw blade tooth shape, acrylic saw blade use most tooth shape is flat teeth around around, aluminum alloy saw blade is ladder flat teeth, do not understand the customer is a large and a small tooth shape, that is also true, if with acrylic cutting saws for cutting aluminum alloy is easy to break the teeth, General aluminum alloy saw blade is relatively cheap, this is also with acrylic crisp and difficult to cut, easy to burst the edge has a relationship, very high requirements for the saw blade. The aluminium alloy that cut is different, domestic besides a few quality do not pass a level, other cut effect is good, can achieve the effect that does not have burr.

With all that said, it should be clear to you that saw blades made of different materials should not be mixed, nor should they be cut by one blade for convenience and money. So different saw pieces should be special saw pieces, the saw pieces of the acrylic is to cut the acrylic, the aluminum alloy saw pieces is to cut the aluminum alloy can be used, good care, saw pieces can be used for a long time, the cutting effect is good.

Posted by: hannahgwendolyn at 09:29 AM | No Comments | Add Comment
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Most ordinary HSS cutting tools and the common welding carbide cutting tools have been unable to meet the requirements of modern processing technology, and gradually be precision overall carbide cutting tools and all kinds of nc indexable tool, precision carbide cutting tools with high speed steel cutter, the common welding tool in the process of grinding process on the requirements for the performance of the machine tool has the very big difference, and the launch of high-precision CNC multi-axis linkage tool grinder and the development of machine tool grinding function and performance meet the carbide cutting tools large quantities of many kinds of high precision grinding process requirements.

CNC tool grinding machine of all brands are generally possess powerful CNC software simulation to edit and high precision grinding machine control system, processing the products according to customer's demand, the tool grinding machine of different brand has its unique advantage: if some suitable for small and medium-sized specifications of large quantities of precision machining tool, some suitable for high precision, small size some suitable for large diameter high efficiency high precision machining, some suitable for processing of non-standard cutting tools, some machine efficiency fitted her for more specifications small batch processing, some suitable for super long diameter cutter blade processing, etc.

The tool grinding machine tool manufacturing now use mainly divided into two kinds, one kind is the import of five axis, six axis linkage CNC tool grinding machine, the main brands are ROLLOMATIC, three berger, EWAG, AGTHON, WALTER, WENDT, Shute, sarkozy, ANCA, dirk, TTB and other international brand; The first kind is the domestic and foreign simple and multifunctional hand special grinding machine, the main brand has deminna, beipin machine tool, nanjing only higher.

CNC tool grinding machine generally adopts world advanced electric control software system, data precision guide rail and the screw motor system, positioning system and other advanced precision grating and servo motor feedback module design, therefore, the CNC tool grinding machine has high precision grinding motion control technology, CNC tool grinding machine is equipped with a powerful 3 d machining simulation software, the user can according to your own cutting tool structure and parameters design requirements online simulate machining tool shape you want. The specialcuttingtool grindingmachine is characterized by simple structure and convenient operation. It is mainly used in the production of non-standard tool and manual tool grinding.

The grinding performance characteristics of various tool grinding machines provide a good choice space for tool manufacturers. Users can choose suitable tool grinding machines according to their own processing characteristics and production scale. The continuous innovation of various tool grinding machines in grinding technology and control function has promoted the continuous progress of tool grinding technology, and provided the guarantee for complex tool structure design and geometric dimension control. But at the moment, the threshold of the carbide cutting tools manufacture, decrease of promotes the expanding tool manufacturing industry, speeding up the cutting tool industry market competition, also prompted precision carbide cutting tools production costs and selling prices are lower. With improved precision carbide cutting tools performance will continue to replace tool market of high speed steel and carbide welding tool, the market demand of precision carbide cutting tools and its market tool use proportion will continue to improve, and the widespread use of precision carbide cutting tools will bring China's manufacturing industry rapid progress and development.

Posted by: hannahgwendolyn at 10:06 AM | No Comments | Add Comment
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The so-called deep hole processing, is the length of the hole and hole diameter ratio greater than 5 holes. In general, deep hole machining, deep hole diameter ratio L/d is more than 100 in most cases. Such as cylinder hole, axial shaft oil hole, hollow main shaft hole and hydraulic valve hole, etc. Some of these holes require high machining precision and surface quality, and some of the processed materials have poor machining performance, which is often a big problem in production.

In most cases, the depth ratio of L/d is greater than or equal to 100. Such as oil cylinder hole, axial shaft oil hole, rocket body and various gun barrel, etc. Some of these holes require high machining precision and surface quality, and some of the processed materials have poor machining performance, which is often a big problem in production. As a result, deep hole machining has received much attention from many people, and more and more people have entered the deep hole machining industry of tungsten carbide drill bits.

Process features:

1. The tool bar is limited by the aperture, with small diameter and large length, resulting in poor rigidity and low strength. It is easy to generate vibration, ripple and taper when cutting, and affects the straightness and surface roughness of the deep hole.

2. When drilling and reaming, it is difficult to enter the cooling lubricant into the cutting area without using special equipment, so as to reduce tool durability and chip removal.

3. in the process of deep hole processing, cannot be directly observed tool cutting condition, with only the sounds of our experience in listening to the cutting, the chip, hand to touch the workpiece temperature and vibration, meter and electric meter (hydraulic table), to determine the cutting process is normal.

4. It is necessary to use reliable means to break the chip and control the length and shape of the chip, so as to facilitate the smooth elimination and prevent the chip from clogging.

5. in order to ensure that in deep hole machining process smoothly and reach the processing quality of should be required, should increase the cutting tool inside (or outside) chip removal device, cutting tool to guide and support device and high pressure cooling lubrication device.

6. Poor heat dissipation conditions of the tool, higher cutting temperature and lower tool durability.

Deep hole machining has been widely used in the mould industry, which solves the problem of fine hole and long hole which cannot be solved by common drilling machine. The machining cost of the mould is effectively reduced. To undertake the most sophisticated deep hole processing, the hole diameter 3-35 length can be up to 2,600. The channel hole, oil channel hole, air hole, single oblique hole, double oblique hole, screw hole, pin hole and so on are solved to the maximum.

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Posted by: hannahgwendolyn at 09:38 AM | No Comments | Add Comment
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Posted by: hannahgwendolyn at 09:59 AM | No Comments | Add Comment
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Low carbon steel is a kind of material with low hardness and high viscosity, so its cutting performance is poor. In order to achieve the maximum surface roughness of the processed hole after finishing, most of them adopt high speed steel reamer, and use low speed reamer to finish the hole machining by drilling, expanding and reaming. Although such a process can meet the requirements of processing precision, but low production efficiency, short tool life. In the process of ream, before cutting edge reamer blade slightly the devolop, will be the hole wall hair, scratch, which affects the surface quality of hole, in order to solve the common process of these ills, carbide reamer hole on finishing high-speed ream experiment was carried out, obtained satisfactory results. The cutting principle of high speed steel reamer and carbide reamer is different, high speed steel reamer relies mainly on the cutting edge sharp to obtain lower surface roughness value, and the carbide reamer is heavily dependent on squeeze cut to obtain lower surface roughness value, so the tool geometric angles are different requirements and cemented carbide reamer.

According to the cutting principle, it is required to cut the sharp edge of low carbon steel reamer which is sticky and soft. The blade material has a direct influence on the tool life. After the reamer is made from five different materials of YT15, YA6, YW1, YT5 and YW2, the effect is also different. Made reamer, YT15 material out of the hole surface roughness value is low, but in the process of cutting edge area easy caving, YT5 and YA6 material made ofcemented carbidereamer, surface roughness value after the ream, but quick wear of cutter relative to other blade material, low service life. For the reamer of YW1 material, the surface roughness value Ra= 1.6m after the reamer is hinged. However, due to the low flexural strength of the blade, blade breakage often occurs. Compared with the reamer of the above brands, the reamer made by YW2 has low surface roughness value and high tool life when processing low-carbon steel.

Improvement of tool structure. In order to overcome the soft hardness and high stickiness of low carbon steel, the head of the reamer is designed and made into a guide head with a certain Angle. This kind of guide head can not only guide the cutting edge of the tool during cutting, but also make the hole machining more linear. In addition, the residual chip can be pushed out to the front of the hole, which will not make it difficult to discharge the chip. The chip is squeezed into the slot of the reamer, resulting in more chip accumulation and tearing the hole wall, damaging the surface quality of the hole. Cutting tool structure adopted large blade Angle, not only can make the reamer smooth cut, and chip can discharge smoothly, at the same time in order to make the chip has enough capacity space, so the standard reamer to decrease the number of. Whether the machining process is properly prepared or not will directly affect the cutting effect. When cutting low carbon steel, the original drilling, expansion and hinge three processes can be changed into drilling and hinge two processes. Due to the nature of the carbide reamer ream is crowded cut, so it is very important to remain ream cushion before ream, function under ream leave allowance is too small, there wasn't enough margin to cause ream, may lead to the surface of the hole is too big and leave the walls drilling trace; If the residual amount is too large, the cutting resistance will be increased and the tool bar will be distorted. Meanwhile, the tool life will also be significantly reduced, and even a large number of chips will be generated and the surface of the hole will be damaged.

Choice of rational cutting allowance to ream holes has a great impact on the quality of low carbon steel material, usingcemented carbidereamer hole for low-speed ream can obtain lower surface roughness value, but the low cutting efficiency; However, the use of moderate speed cutting is easy to produce chip deposition, which affects the surface quality of the hole. High speed cutting is relatively ideal, can greatly improve the productivity, but also can obtain good machining quality, if match with suitable cutting fluid, the cutting tool can improve the life (in extreme pressure cutting fluid is preferred).

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Posted by: hannahgwendolyn at 09:47 AM | No Comments | Add Comment
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