That, I think so, in the actual processing, dip in accumulation place is far, alloy tool to rip off hardening layer, and then use white steel lathe tool for car, car when turning and is not very big, some relative sharpen knife for you processing can effectively avoid the knife, and the effect of cutting fluid is more simple, reduce the cutter wear, increase the degree of finish. Cutter causes of accumulation of tumor was high temperature of the cutting tools, so that the wear of the cutting tools is accelerated, a blunt knife may be faster, so the cutting tool to sharpen some, the use of cutting fluid is the best way, there's nothing else to solve
Actually with the high speed won't be able to rest itself, gao not artifacts jilt fly is the center plane fly, you can try using HSS tool cutting, should pay attention to add coolant can solve, if it is just a rough machining is solved, you only need to add coolant finishing if it is necessary to choose high speed steel grinding inner hole tool, also can use first alloy tool first rough car, abort the burr and crusty, then white steel knife to fine cars, coolant must be added, this is the key. Cutting tool choice is quenching material can choose white steel lathe tool, quenching material alloy tool. And since it is welding, sure material welding surface has dipped far is already in the process of welding surface hardening, so need to use alloy made rough car off hardening layer and burr, then white steel knife finishing, a little, white steel knife must be sharpened
3) master Angle kappa r: the Angle between the cutting edge and the direction of the main cutting edge is measured in the base plane. Its effect is to affect the length of the cutting edge, the force resistance, the strength of the blade and the heat condition. The smaller the main Angle, the greater the resistance, the longer the cutting edge, the better the heat. The principle of selection is: when the workpiece is bold and rigid, it is desirable to be small; In order to reduce the radial force resistance of the shaft in order to avoid bending the workpiece, select the larger value. Commonly used between 15 ° and 90 °. (4) paragon kappa r: the side cutting edge is measured in the base plane with the Angle between the inlet and the other. Its effect is to affect the roughness of the finished surface, and reduce the auxiliary Angle to make the surface smooth. Selection principle is: when finishing, to improve the quality of the finished surface and should select a smaller value, usually for 5 to 10 °. (5) blade Angle lambda s: the Angle between the main cutting edge and the base surface, measured in the main cutting plane. The main effect is to affect the direction of the cutting and the strength of the tip. The main cutting edge is parallel to the base of the hilt with the base of the handle of the handle, the lambda s = 0, the cutting edge is flowing in the direction of the main cutting edge. When the tip of the blade is at the lowest point of the cutting edge, lambda s is negative and the chip is flowing to the finished surface. When the tip of the blade is at the highest point of the cutting edge, lambda s is positive and the chip is flowing to the surface.
Car knife: external turning tool, face turning tool, cutting knife, inner hole tool, threading tool. The Angle of the car knife is: the front Angle, the rear Angle, the rear Angle, the Angle of the blade, the Angle of the main and the side Angle. (1) gamma 0: the Angle between the front and the base, measured in the main section. The size of the front corner influences the sharpness and strength of the cutting edge. It can reduce the cutting force and reduce the cutting temperature, but it can reduce the strength of the blade and cause the blade to be damaged easily. Scope: - 8 ° to + 15 °. The general principle of the former corner is that the size of the anterior Angle is related to the cutting of the cutting part of the tool, the processed materials and working conditions. When the cutting parts of the cutter are brittle and low strength, the front Angle should be small. When the material strength and hardness of the workpiece are low, it can choose the larger front Angle. In the case of heavy cutting and shock working conditions, the front Angle can only take smaller values, sometimes even negative. In order to ensure the cutting edge strength of the tool, try to choose the large front Angle. When machining steel material such as carbide tool rake Angle value optional 5 °, 15 °. (2) the Angle alpha 0: the Angle between the blade and the cutting plane in the main section, measured in the main section. The effect is to reduce the friction between the blade surface and the workpiece. It also affects the strength and sharpness of the blade as well as the anterior horn. Selection principle is similar to the anterior horn, general 0 to 8?
