Mould repair welders
Mould Laser Welding Machine 200 / 300 / 500 W (Nd:YAG)
- Laser power
- 200–500 W
- Welding depth
- 0–3 mm
- Table load
- 200 kg
Application · Laser welding · Laser cleaning
Rebuild the edge. Keep the texture.
Mould shops use pulsed laser welders to rebuild worn edges, cracks and engraving with filler wire, and pulsed laser cleaners to remove residue without damaging the polished or textured surface.
The job
Injection moulds, die-casting dies and stamping tools wear at edges and parting lines, crack under thermal cycling and collect residue. Replacing a tool is expensive; repairing it in place keeps production running.
Laser welding for repair
A mould repair welder sits on a movable stand with a long arm and a microscope. The operator feeds fine filler wire into the spot and builds up material pulse by pulse, then machines or polishes it back to shape. The heat-affected zone is small, so the surrounding steel keeps its hardness and polish.
Laser cleaning for maintenance
Pulsed laser cleaners remove release agents, rubber residue and carbon deposits from mould cavities and vents without dry ice, blasting media or solvents, often while the mould is still warm in the press.
Choosing equipment
For repair, choose pulse power by the size of the repairs you do and the reach of the arm by the size of your tools. For cleaning, pulsed power of 100–300 W suits most mould work. Send us a worn insert and we will show you the repair.
Machines for this job
Pulsed cleaners, 50–500 W
Pulsed Laser Cleaning Machine, MW-C50 to MW-C500
- Laser power
- 50–350 W
- Wavelength
- 1064 nm
- Scan width
- 10–80 mm
Pulsed cleaners, 50–500 W
100 W Pulsed Laser Rust Remover (JPT source)
- Laser power
- 50–100 W
- Cleaning rate
- 12 m²/h
- Scan width
- 10–80 mm
FAQ
Questions buyers ask
Can laser welding repair hardened tool steel?
Yes. The small heat-affected zone reduces the risk of cracking compared with TIG, which is why mould shops use laser welding for precise repairs. Preheating and the right filler wire still matter for some steels.
Will laser cleaning damage a textured mould surface?
A pulsed laser set correctly removes release agent, rubber and carbon residue while leaving the texture intact. Continuous-wave lasers are not recommended for this.