Application of coaxial double-position guiding die

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

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Analysis of welding defects in automobile mold repair

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

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Measurement of the maximum height of the contour R_y

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

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Gauge to detect the coaxiality of the hole

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

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Post processing of CAD/CAM integrated CNC programming system

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,

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Introduction of special foam beads for lost foam casting

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

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