There are many reasons for the scrapping of aluminum molds: Firstly, the working conditions of aluminum extrusion molds are extremely harsh, as they endure intense friction and wear under high temperatures and high pressures. According to on-site production statistics, the main failure modes of molds are threefold: (1) friction and wear failure account for 65%, (2) fatigue crack failure accounts for 18%, and (3) plastic deformation and collapse failure account for 15%. The determination of a failed mold is based on the extrusion product not meeting product standard requirements and being irreparable. The service life of a mold is generally described in terms of the effective extrusion amount.
1. Scrapping Process: When a mold is found to be damaged or worn after use and cannot be repaired, the Mold Maintenance Department of the Manufacturing Section fills out a mold scrapping application form. It is then reviewed by the company's Deputy General Manager and approved by the General Manager before implementation. The Technical Department will apply for the production of a new replacement mold.
2. Scrapping Standards: The standards for mold scrapping refer to relevant national regulations and the company's established asset management procedures, as follows:
Obsolete Technical and Quality Standards
1) The product has stopped accepting orders, and the items produced by the mold have no place to be used.
2) The mold has reached the end of its service life and is severely damaged, making it unusable.
3) Due to design changes, the original product has changed, and the mold cannot be altered or repurposed.
4) The mold has cracks, and the surface roughness required by the product cannot meet the product process requirements.
5) The mold has a high scrap rate, and more than three "Countermeasure Meetings" have been held without resolution.
6) The mold has multiple weld repairs, frequently malfunctions, and cannot normally complete one shift of production.
7) The mold has large inserts that are cracked, and remanufacturing the inserts is uneconomical.
8) Due to design or manufacturing reasons, the mold often sticks, has dimensional deviations, and low efficiency.
9) Other factors result in the mold having no remaining value for use.
