Analyze the topic of "What are the sections of metal stamping parts - Classification of stamping parts sections" from the perspective of the geometric shape and flatness of stamping parts.
From the perspective of geometric shape, the sections are generally classified into irregular polygons, circular sections, rectangular sections, trapezoidal sections, etc.
Irregular polygonal cross section is a complex cross section with multiple numbers and shapes of boundaries, which is usually found in stamped metal brackets; circular cross section, the characteristic of circular cross section is equal cross section diameter, which is found in stamped cylindrical bearings, cylindrical stamping parts, bearing seats, bearing accessories, miniature flat thrust bearings, metal outer rings; rectangular cross section, rectangular cross section is a simple rectangular shape, with equal cross section length and width, and uniform force, which is found in energy storage outdoor battery outer box, automobile fuel tank shell, metal sheet metal regular graphic base, etc.; trapezoidal cross section, trapezoidal cross section often appears in stamping parts with load-bearing and stress-dispersing, and in situations where the upper and lower lengths of the cross section parts are inconsistent, such as stamped porous metal partitions, ash partitions used in coal plants, various steel partitions, battery covers, stainless steel covers;
What are the characteristics and features of the cross section of hardware stamping parts? What are the sections of metal stamping parts - Classification of stamping parts sections
From the perspective of surface flatness, the sections are generally classified into corrugated sections, cracked sections, torn sections, burred sections, and flat sections.
The corrugated section is the uneven wrinkles along the tangent of the edge of the blank during the stretching process. The cause of the corrugated section may be excessive stamping stress, instability of the flange part, mechanical structure of the press, or improper operation.
Crack section, material edge is fragile, material quality and performance are not up to standard, hardness is not good, punch pressure control is not accurate, stamping parts structure design is unreasonable and subsequent processing technology such as improper heat treatment, improper design structure of mold wear surface and other factors cause the crack section problem of stamping parts. For parts with high fracture surface, such as punching battery clips, metal fixing clips instrumentation car battery clips battery racks battery clips battery contact pieces rivet parts automatic production line, mold manufacturing can consider using SKH-9 type of high hardness and high strength materials.
Tear section, the design of the forming process affects the tear section, the pressing core collides with the die, tensile stress is generated, the material strength is insufficient, the workpiece is torn, and the workpiece produces a tear section.
Burr section, the burr area is an irregular tear edge formed around the fracture zone. Its characteristics are affected by many factors such as material properties, material thickness, edge sharpness, mold structure and gap between the concave and convex dies. For materials with poor plasticity, the tendency to fracture is more serious, the fracture zone is therefore widened, and the proportion of bright zone and rounded zone is smaller, and accordingly, the burrs produced are also smaller.
Flat section, this type of section is very common, the edge of the stamping part shows excellent smoothness, without obvious burrs or cracks. This fine section treatment not only improves the overall appearance of the product, but more importantly, it reflects the high quality and performance stability of the stamping parts. Choosing products with this type of section will undoubtedly bring users a more reliable and lasting use experience.
Stamping process, stamping equipment, and mold design will affect the surface quality of the workpiece. The above is about What are the sections of metal stamping parts - Classification of stamping parts sections.
