Jinan Weihua Machinery & Equipment Co., Ltd · Jinan Shandong China
YAG Laser Welders from Weihua Laser
Machine Category

YAG Laser Welders

YAG mould repair welders for tool rooms that have to rebuild a worn cavity edge without pulling the mould apart or distorting it.

YAG Laser Welders We Build

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What It Solves

Problems This Category Removes

  • TIG repair puts too much heat into a thin cavity wall and the tool distorts
  • A worn parting line or a damaged edge takes the mould out of production for days
  • Fine details cannot be rebuilt by hand without losing the original geometry
  • Hard and special mould materials crack when they are welded with conventional methods
  • The weld point cannot be seen accurately enough to place filler on a small feature
Buyer Fit

Who These Machines Are For

  • Mould and die repair shops rebuilding injection and die-casting cavities
  • Automotive suppliers repairing chassis, tyre and auto part tooling
  • Bearing and engineering machinery workshops welding hard materials and aluminium castings
  • Appliance producers repairing plastic shell moulds between production runs
Advantages

Why Buyers Choose These Machines

  • Power options of 200 W, 300 W, 400 W and 500 W with single pulse energy up to 140 J
  • Welding depth from 0.1 mm to 3 mm so thin walls and fine details can be rebuilt
  • Focal diameter adjustable from 0.3 mm to 3.0 mm to keep heat input local
  • 10X stereo microscope with cross cursor or CCD camera display to place the weld point
  • Ceramic cavity reflector rated for 8 to 10 years of working life
  • Xenon lamp rated at 3 million shots before replacement
Application Scenarios

Where They Are Used

  • Rebuilding a worn cavity edge on an injection mould still in the press schedule
  • Spot, butt, overlay and sealing welding on mould surfaces
  • Repairing die-casting tooling where cracks appear at the gate
  • Restoring fine details on complex shaped mould parts without disassembly
  • Welding aluminium castings and hard materials that crack under TIG

Application Cases

All cases
Buyer Questions

YAG Laser Welders FAQ

What welding depth can a YAG mould welder reach?
From 0.1 mm to 3 mm depending on power and pulse settings. The 500 W model delivers up to 140 J single pulse energy.
Will the mould distort during repair?
Heat input is kept local by the small focal diameter, adjustable between 0.3 mm and 3.0 mm, which is the reason tool rooms move from TIG to a YAG welder for thin walls.
Can I see the weld point clearly on a small feature?
Yes. The cantilever model uses a 10X stereo microscope with a cross cursor and the mould repair model adds a CCD camera display.
How long does the lamp and cavity last?
The xenon lamp is rated at 3 million shots and the ceramic cavity reflector at 8 to 10 years of working life.
What is the difference between the two models?
The cantilever welder puts the head on an arm so you can work over a large or heavy tool. The mould repair welder uses a digital control interface with a capacitive touchscreen and a camera display.
What warranty do you give on a YAG welder?
Two years on the whole machine, with free repair and return postage on accessory quality problems inside the period and free technical support afterwards.

Get A Quote On YAG Laser Welders

Send the material, thickness and sheet or part size you run. We reply with the model, the power rating and the delivery route within 24 hours.