How to solve the problem of fast cutting tool loss in CNC lathes
How to solve the CNC lathe production processing tool loss, you need to pay attention to some small skills
1, the car blank is round, the knife should be a bevel.
2, at the beginning of the fine car is the most easy to wind chips, rotation speed is moderately reduced, feed rate is not very slow, gradually chamfering, 3 mm back knife, let the chamfering iron chip discharge, improve the rotation speed, and then the edge rod diameter needs to feed speed straight turning can be.
3, coarse car at this stage of the axle diameter allowance should be adjusted symmetry, do not have taper (sometimes in order to better reduce the vibration tool except). Then gradually raise or decrease the allowance (increase or decrease by 0.2mm), it can be resolved.
4, the cutting fluid must be drizzled in the cutting point, and both the position of the tool tip drizzle of the whole rod body.
5, the main deflection Angle should not be too small. If you don't have a specific need, make it as big as possible. The main deviation Angle is usually 75° when the non-right Angle step axis is used.
6, rotation speed and feed speed.
(1) When turning groove knife, the faster the rotation speed, the easier it is to wrap, especially at the cutting place, the rotation speed should be reduced, and the feed speed should be increased if necessary.
(2) The chip knife only needs to increase the feed speed. (Also take care to ensure roughness)
7, with the usual triangular groove knife cutting groove, cut without strict provisions about 1mm or 2mm deep groove, add blank allowance, allowance appears more, and then add this kind of condition to ensure that the groove wall on both sides of the Angle of symmetry and groove wall, the main Angle is small, so it is especially easy to tangle.
(1) First cut a section of the blank with the same diameter of both ends of the outer circle, and then toward a bevel of the blank outer circle, the Angle is smaller than the main bevel Angle of the knife at this stage. Then return to the outer circle, gradually cut the groove, the feed speed should not be too slow, the rotation speed should also be coordinated, the rotation speed should not be too fast (when the feed rate is 150%, the programming "F" value is about 160 to 260, the spindle rotation speed is about 1500~ 1700R /min, but it is not necessary to be in such a range. According to the actual situation and product needs, machine performance and lathe work experience to determine).
(2) For the sake of insurance, reduce the probability of tangling, ensure to reduce the edge and corner burr caused by excessive allowance of deflection Angle polishing workpiece. It is best to divide the two knife car, coarse car moderately reduce the rotation speed, feed rate moderately improve turning, and is fine car reserved less margin, fine car to improve the rotation speed and feed rate, can ensure roughness and aging.
8, the material of the product needs to be suitable for the hardness of the tool, the material is soft products need sharp edge and chip removal especially unobstructed groove knife, the material is hard products need a slightly blunt blade, can choose the chip knife, it will not have chip.
9, with the groove knife, do not let the iron filings from the tip of the vertical and down, should assemble an iron hook, let the iron filings from the workpiece a distance down.
10, the production and processing of aluminum parts, can not use the usual car steel blade to car aluminum, do not need to add cutting fluid, it will be oxidized. Aluminum blade usually front Angle 35°~45° knife tip must be sharp, rotation speed should be high, linear speed of about 800, is your machine tool can be opened as fast as possible. Large F feed value is beneficial to chip cutting. General aluminum front Angle is large, to choose the appropriate blade, pay attention to aluminum is a non-ferrous metal.
Taiye Machinery was founded in 2005, the company is located in the beautiful Zhejiang, China，Taiye machine provide a full set of professional extrusion die equipment and extrusion dies, We have an aluminum extrusion die factory and a professional extrusion die equipment company in China. Our machine tools product include machining center, CNC lathe, wire cut EDM machine, EDM machine, Vacuum Furnace, etc.
