Research on the Reconditioning of Injection Moulds by LASER Welding

An important problem for plastic injection moulding companies is the deterioration of mould nests due to several factors such as wear and tear caused by heavy use, corrosion, misuse, etc. These defects, even small ones, can affect the injection moulded product. To reduce the cost of making a new mould, damaged areas are repaired. TIG welding or laser welding is commonly used. For areas with small defects, laser welding is preferred due to its advantages. The paper presents research on the choice of wire when reconditioning a mould using laser welding.