To design the tool manual for the shape of the rib body
So there was a rapid development. The cutting part of the lathe is composed of main cutting edge, cutting edge, front, rear and rear. Its geometry by former Angle Angle alpha after gamma o, o, Lord Angle kappa r, blade Angle gamma S predominate, deputy Angle kappa 惤 predominate and point is determined by the arc radius r epsilon. The choice of the geometrical parameter of the lathe is influenced by a variety of factors, which must be selected according to the specific situation. The anterior Angle gammao is selected based on the composition and strength of the material of the workpiece, and the smaller value should be taken when the material of higher intensity is higher. For example, cemented carbide cutting tool in cutting of ordinary carbon steel before take 10 ° ~ 15 ° Angle; When cutting chromium manganese steel and hardened steel take - 2 ° ~ 10 °. After generally take 6 ° ~ 10 ° Angle. Main Angle kappa r predominate, according to the rigid conditions of the process system generally take 30 ° ~ 75 °, poor rigidity when take larger value, in the car when the ladder shaft, due to the need of cutting way is greater than or equal to 90 °. Tip arc radius r epsilon and deputy Angle kappa 惤 generally predominate and selection according to the requirement of the processing surface roughness. The blade Angle gamma S is determined according to the direction of the drainage and the strength of the blade. The pattern in front of the lathe (figure 2) is based on the material of the workpiece and the material of the tool. The simplest is the flat type, the flat type of the front Angle
Working part of the lathe tool is a portion of production and the processing chip, including the blade, the structure of the chip broken broken or volume approach, chip removal, or should the storage space of the chip, cutting fluid channels such as structural elements. The cutting part of the tool is made up of the main cutting edge, the side cutting edge, the front edge of the knife, the face of the blade and the face of the blade. The combination of the cutting part and the handle part (the filling part) is mainly the integral, welding, mechanical clamping and weld-mechanical clamping. The mechanical clamping tool can prevent hard metal blades from cracking during high temperature welding, and the handle can be used several times. The mechanical clamping tool is used to clamp the blade tightly with screws and press plates, and the mechanical clamping tool with indexable blade. The edge of the blade can be used after being blunt, and it can be stopped for a blade
The structure can be divided into the overall car knife, the welding tool, the lathe tool, the turning tool and the shaping tool. The use of indexable turning tool is becoming more and more extensive, and the proportion of the blade is gradually increasing. Second, the hard alloy welding tool A welding tool, is on the carbon steel cutter bar open groove, according to the requirement of the cutting tool geometry Angle solder will carbide blade welding in the tank, and according to the selected tool geometric parameters used after grinding. The machine clip tool is used as a common blade, and the blade is held in a mechanical clamping method.
Before cutting the cutting tool, check the grinding wheel for the first time, the wheel shaft nut is tightened, and then it is used after the test, so as not to break the grinding wheel or fly out of the hurt. 2) the cutting tool should not be too hard, otherwise it will cause the hand to slide and touch the wheel face, causing the injury accident. 3) wear protective glasses when grinding knives to avoid the gravel and debris flying into your eyes. 4) don't stand in the direction of the wheel when you are sharpening the wheel in case of an accident. 5) when grinding the head of a small knife, it must be put on the tool bar. 6) the gap between the grinding wheel and the wheel shall not be greater than 3mm, and it shall be adjusted properly.
