2results about How to "No flash" patented technology

The application discloses an extrusion blank of a blade, an extrusion blank mold and a design method, and comprises the following steps: for M blade section of the blade body part, the circular section of the extrusion blank is the same as the area of the blade section corresponding to the final forging, thus the diameter of the corresponding section of the extrusion blank mold is calculated; for the tenon part, the tenon of the extrusion blank is the same as the size of the tenon of the final forging or the pre-forging, thus the parameters of the corresponding tenon part of the extrusion blank mold are obtained; for the process chuck part, the process chuck of the extrusion blank is the same as the size of the process chuck of the pre-forging, thus the parameters of the corresponding process chuck part of the extrusion blank mold are obtained. According to the area of the blade section corresponding to the final forging, the diameters of different sections of the cavity corresponding to the blade body part of the extrusion blank mold are obtained, so that the area of the corresponding section of the extrusion blank is the same as that of the final forging, and in the subsequent pre-forging process, the metal of each part is distributed "on demand", so that burrs are not generated in each forming step.

This invention discloses a composite mold and stamping method for asbestos gaskets used in ignition engines. The asbestos gasket mold can simultaneously complete the punching of the inner hole and the blanking of the outer diameter of the gasket. The specific mold structure includes: a lower mold base; a lower mold backing plate and a protective mold sleeve; a die; an ejector and a compression spring; an ejector rod; a punch base; a punch; a backing plate and screws; a mold shank; an ejector rod; an upper mold plate; a top plate and a push rod; and a stop pin. This mold structure enables simultaneous punching of the inner hole and blanking of the outer diameter of the gasket, resulting in asbestos gaskets with high dimensional accuracy, flatness, and good appearance quality. It is a high-quality and efficient processing method for producing asbestos gaskets. Compared with machining processes, it offers superior quality and higher efficiency.