The mould and die making industry forms a core part of the local manufacturing industry. When a product design specification changes or a mould is damaged, it usually takes a long time for mould manufacturers to re-work or repair with the conventional argon welding approach.

To maintain the competitive advantage of the local mould and die manufacturing industry, HKPC introduces and promotes the laser welding technology. With the development of an integrated 3D automatic laser deposit welding system, HKPC assists the local industry to acquire the advanced technology in laser deposit welding for mould repair and mould design modification. In addition, it provides bureau and consultancy services to assist the local industry in the adoption of the developed technology.

With the Laser Deposit Welding System installed and integrated, the PTTC is capable of providing mould repair and modification services with high precision, low porosity and without thermal cracking.

The system is applicable to a variety of substrate materials including aluminum, copper and all conventional types of moulds and tool steels. By using the smallest laser spot (0.2mm in diameter) and wire (0.17mm in diameter), laser deposit welding can reach mould areas that a conventional welding method cannot reach.

Laser deposit welding technologies include: the development of an integrated CNC automatic 3D laser deposit welding system, development of a desktop CNC automatic 3D laser deposit welding system, and a manual laser deposit welding technology.