Challenges and Adaptability in Manufacturing Drawn Metal Parts:
When manufacturing drawn parts, it is preferable to use standard die sets, as the type and specifications of the standard die set determine those of the upper and lower die bases. If a custom die base must be designed, the diameter of a circular base should exceed that of the female die plate by 30–70 mm, while the length of a rectangular base should exceed that of the female die plate by 40–70 mm; the width may be slightly greater than or equal to that of the female die plate. The thickness of the die base can be determined by referencing standard specifications-typically 1.0 to 1.5 times the thickness of the female die plate-to ensure sufficient strength and rigidity. For large, non-standard die bases, design must be tailored to specific requirements, adhering to casting technical standards and structural design specifications.
Micro-cracks frequently occur during the deep-drawing process; these cracks are difficult to detect and control, posing a constant potential threat to the finished parts and representing a persistent technical challenge for manufacturers. Deep drawing is a stamping process in which flat blanks or hollow components are transformed into various open-ended hollow shapes using a drawing die. This method enables the production of thin-walled parts in cylindrical, stepped, box-like, spherical, conical, and other complex shapes. Consequently, deep drawing plays a vital role in the stamping production of components for industries such as automotive, tractor, electrical appliance, instrumentation, electronics, aviation, and aerospace, as well as for everyday consumer goods.
