Choosing the best cutting tool is to ensure the success of a key work , but also a need to repeatedly perform regular work , it directly affects the competitiveness of the processing cycle time and processing plant .
    A typical supermarket usually have a stock 48,750 units (SKU), and 35 different canned beans. Now imagine a major tool manufacturers tool products , just inch sizes varieties and specifications on more than 40,000 stock units ( like the same kinds of beans , canned supermarket ) . Single volume terms, compared with choosing the best tools, the best selection of canned beans is simply a piece of cake ! Select the tool is to pick out the match with machine tools and machining can in the shortest cycle time , at the lowest cost and highest quality cutting tool of the part feature . Here are some key factors when selecting a metal cutting tool needs to be considered .
    ( 1 ) The most important tool
    If any kind of tool to stop working , production will come to a halt . But that does not mean that it should be the same for each tool are concerned . Longest cutting tool will have the greatest impact on the processing cycle time , and therefore , under normal circumstances , the maximum degree of importance and should be of such a tool . Also need extra attention to those important parts machining characteristics and dimensions of the highest precision tool . In addition , for those who are most likely to produce difficult to control the chip tool ( such as drilling, grooving and threading tool ) , also need to be given more attention, because it is not likely to cause processing chips ideal standstill .
    ( 2 ) to match with the processing machine
    The tool is divided into left and right cutter knives, therefore , the right choice is very important tool in the right hand . Typically, the right tool applicable to the operation of the machine tool spindle counterclockwise , while the left hand tool suitable for machine spindle clockwise operation . If you have several lathes - some of which tool to use his left hand , while others use both hand tools, tool can also use the left hand - left hand tool should be used . For milling , most people tend to choose large tool overhang . Although a large overhang cutter can cover a larger part machining range, but this option will reduce the rigidity of the tool , the tool deflection increases , reduce cutting speed , and more prone to flutter . Also note that the machine gripper size and weight of the tool has some limitations. If you choose coolant through spindle cooling machine tools, cutting tools should be used with the same cooling function .
    ( 3 ) matches the material of the workpiece
    Processed material to steel majority, therefore , most of the tools are designed to better processing of steel . The choice depends on the tool grade material to be cut . For a variety of non- ferrous materials - such as high-temperature alloys, titanium , aluminum , composites , plastics, pure metals - tool manufacturers design and manufacture a series of tools and supporting chuck blade geometry. If you are cutting these materials , it is necessary to understand for the processing of these materials and specially designed tool -related information.
    Size ( 4 ) of the tool
    Select a tool often mistakes are: selected small turning , milling too . Large turning rigid better ; while large size milling prices are more expensive , and you want to spend more time on the air cutting . In general, the larger the size of the tool , its cost is also higher.
    ( 5 ) Select indexable cutting tool or tool can be reground
    For this question, the answer is simple: try to avoid sharpening knives. In addition to some of the drills , end mills and a few other exceptions , you should use a blade or indexable tool ( in the case of supply situation ) . Compared with the re- grinding tools , indexable cutting tool can save labor costs and more reliable , more consistent processing results.
    ( 6 ) tool material and grades
    Tool material and workpiece material selection and grades as well as the machine speed and feed rate limits are closely related. For a certain type of workpiece material , you should choose the best tool versatility grades ( most likely some kind of coated grades ) . Grades tool manufacturers can use to select a chart prepared . A common mistake is to use some kind of grades tool life control charts to solve the problem . If you use the tool life is not ideal , and you choose the most similar to their grades , may get as bad machining results . Problem solving tool life need to focus its failure modes.
    ( 7 ) Power Requirements
    The guiding principle is " the best use ." If you bought a 20 -horsepower machine , you should choose to use 80% of its effective power tools and cutting parameters ( in the workpiece and fixture permitting ) . Pay particular attention to the machine 's user manual for power / speed tables. Selected for optimal cutting in the range of the effective power of the machine tool design .
    Number ( 8 ) of the cutting edge
    The answer to this question is " the more the better ." Typically , increasing the number of double cutting edge tools , the cost is not increased twice . In the past decade, grooving, cutting blades and some milling insert design has been greatly improved , the number of cutting edges per blade than doubled . Cases replaced with new cutter film with up to 16 of the cutting edge of the cutting edge of only four pieces of traditional milling uncommon . The number of effective teeth has a direct impact on the feed rate and the productivity of the machine table .
    ( 9 ) to select a single -piece design is modular structure
    The tool most suitable for small single-piece design, the tool is more suitable to select a larger modular design . When a large tool failure , users want to replace the parts are relatively small , the cheapest components for grooving and boring tools in particular.
    ( 10 ) to choose a single or multi-purpose tool use tool
    Generally, the smaller the piece quantities , more suitable for processing with multi-functional composite tool . For example , a composite tool to complete the drilling, turning , boring, threading , chamfering , and other cutting functions. In addition, the work more complex and versatile tool suitable for processing . A machine only when the cutting tool in order to create effective, and therefore should minimize tool changes and other auxiliary work .