When processing the workpiece shown in Figure 1 (material QT500-7), our factory will position the bottom surface and the bottom hole after the four holes are machined, and then machine the two holes on the two sides. Φ19.5_0~(+0.21), the coaxiality and positional accuracy of the hole are not hig

Model NO.: 8-28mm Rang: 3-16mm 8-28mm   <i

Wheels are an essential part of a car. The quality of the wheels, including the quality of the wheels and their installation, directly affects the performance and safety of the car. There are news reports that the wheels of a truck are flying out of the dead during the driving proces

Summary: Aiming at the serious problem of torque attenuation of the suspension system fastener of a certain type of vehicle, the main reasons for the problem are determined through detailed analysis of various influencing factors. Through rectification and optimization for various i

Foreword Wire-cutting technology (WEDM) plays an important role in many industrial production fields such as mold manufacturing, automobile manufacturing, and aerospace manufacturing. To make a prototype of a low-speed wire-cut EDM machine that omits its secondary structure and technical aspects,

Insufficient hardness of cold stamping die welding: Reason: (1) When the welding current is too large, the dilution ratio of the mold base material is too large, and the alloying elements of the mold base material are damaged. Countermeasures : Try to use small current and short arc welding. Th

Surface roughness is an important indicator of surface quality. It has a direct impact on the mechanical parts of friction, lubrication, sealing, wear resistance, fatigue resistance, electrical conductivity, corrosion resistance, paint and other functions. Considering the extensive and diverse effe

<br> <br> 1 Introduction With the rapid development of modern science and technology, tool varieties made of polycrystalline diamond (PCD), polycrystalline cubic boron nitride (PCBN) and other superhard materials has become increasingly diverse, the performance It has also been continuo

For large and medium-sized parts or parts with large center-to-center span and large holes, it is difficult to test the same degree. When we measure the coaxiality of the two crankshaft holes and the two drive shaft holes of the press, the gauge detection method is adopted. Simple, time-saving, con

This paper introduces the principle and composition of post-processing in CAD/CAM integrated CNC programming system, the structure of the post-processing program of MasterCAM automatic programming system and the setting contents of its customary files. By using the modified post-processing program,

Abstract : The basic principle of vibration stress relief technology is analyzed and discussed. The effectiveness of vibration elimination stress in the processing of aluminum alloy parts is verified by the comparison of vibration elimination stress and traditional heat treatment aging process. Hig

If you want to ensure the quality of lost foam casting products, the use of high-quality casting special foam beads is a key link. The foam model used to make a product with packaging foam will greatly affect the quality of the casting product because of its uncertainties such as gas generation and