Some people cannot distinguish establish milling cutter and the distinction between the milling cutter that cut corner. Below certain circumstance, their use is similar, but this does not mean them to be able to be replaced each other. Give everybody popular science today: Establish milling cutter and keyway milling cutter what to distinction there is? How distinguish and use different milling cutter
1.Press application
Vertical milling cutter is used at machining plane or round cylinder, its external diameter is relatively comfortable, and keyway milling cutter is used at machining keyway, between the quality that diameter affects keyway directly outside its and keyway match degree.
2. ages number differs
Stand milling cutter has 3 commonly or more ages, keyway milling cutter has two a tooth-like part of anything commonly.
3.The difference of the brim
To improve work efficiency, establish milling cutter to have many surplus, the diameter is bigger, surplus is general more, keyway milling cutter has two surplus, basically resemble broach same axial feed
4. axial is different
Establish milling cutter cannot axial enters cutting tool, and axial of need of keyway milling cutter is mobile, the axial that has cutting tool at the same time is mobile, can axial enters cutting tool, be equivalent to broach, can get smooth bottom outlet.
Select blade number according to establishing the cutting pattern of milling cutter
For example, when groovy cutting undertakes below the situation with cutting width and cutting tool same diameter, need chamfer of bigger point of a knife. Below this kind of circumstance, choose 2 blade to establish milling cutter normally. Undertake small when cutting wide side, the tigidity of first consideration cutting tool, choose much blade to establish milling cutter.
Choose the length of bit.
According to the geometrical appearance of treatment, be like the geometrical deepness of groove, choose length of point of first-rate milling cutter. If choice carbon is qualitative prime number is less establish milling cutter, can appear vibratile vibration, the character that establishs milling cutter cannot get be developinged adequately, gain the treatment face of high accuracy hard, produce other and undesirable effect.
Have different helix angle establish milling cutter
The helix angle that establishs milling cutter is bigger, the osculatory length between workpiece and cutting blade is longer. This reduced the cutting blade negative charge on unit length, prolonged the service life of cutting tool. However, meanwhile, cutting obstruction increases, because Lv of this take an examination makes,appliance has Gao Ga to hold the knife handle of stiffness.
Wait for difficult cutting material to stainless steel, coefficient of thermal conductivity is low, bigger to influence of quantity of heat of stainless steel point, conduce to prolong cutting tool life. In addition, the character of finished product surface follows the change of helix angle and change. For example, should need bright and clean when spending, can use large helix model establish milling cutter.
But, if use big helix angle establish milling cutter, cutting obstruction increases, the force of orthogonal cutting tool also increases, because this need is adopted,use the measure such as the knife handle with close solid tall tigidity.
Although can assure the tigidity of cutting tool, but in the workpiece tigidity such as laminose treatment inferior circumstance falls, can use small-sized helix to establish milling cutter.