Laser Welding Machines
Mold Repair Cantilever Laser Welder
The WH-MW series is a cantilever YAG laser welder for mold repair and precision welding on chassis, auto parts, bearings and engineering machinery...
Laser Welding Machines
Mold Repair Laser Welding Machine
The WH-MW series is a YAG laser mold repair welder available in 200 W, 300 W, 400 W and 500 W output power. At 500 W it delivers up to 140 J single pulse energy and welds depths from 0.1 mm to 3 mm on thin-walled and fine metal parts.
Product Overview
What This Machine Is Built To Do
The WH-MW series is a YAG laser mold repair welder available in 200 W, 300 W, 400 W and 500 W output power. At 500 W it delivers up to 140 J single pulse energy and welds depths from 0.1 mm to 3 mm on thin-walled and fine metal parts. The system uses a digital control interface with a capacitive touchscreen and a 10X stereo microscope with CCD camera display for precise observation. With a focal diameter adjustable between 0.3 and 3.0 mm, it minimizes thermal deformation and oxidation, making it suitable for repairing complex-shaped moulds without preheating.
- Welds depths up to 3 mm on the 500 W model, covering most mould repair thicknesses
- Small heat-affected zone prevents deformation of the mould base during localized repairs
- 10X stereo microscope with CCD camera allows clear observation of fine weld seams
- Digital control system with capacitive touchscreen simplifies parameter entry for operators
- Ceramic condenser cavity in lower power models offers 8 to 10 year chamber life
- Welding head rotates 360 degrees to access difficult angles on complex moulds
- No preheating required reduces cycle time for urgent mould repairs
Where It Is Used
Application Scenarios
- Repairing thin-walled metal moulds where traditional welding causes distortion
- Fixing wear and damage on high-hardness or special material mould components
- Performing spot, butt, overlay and sealing welding on mould cavities
- Restoring fine details on complex-shaped mould parts without disassembly
- Localised heat treatment and welding of small-sized industrial components
Buyer Fit
Who It Is For
- Mould and die repair shops handling high-value tooling
- Injection moulding facilities needing in-house maintenance for production continuity
- Hardware manufacturers repairing fine metal parts with minimal thermal impact
- Machine dealers serving the mould repair and maintenance sector
Process Problems
Problems It Solves
- Traditional welding causes excessive heat spread, warping the mould base
- Fine details on moulds are lost when using coarse welding methods
- Preheating requirements slow down urgent repair turnaround times
- Oxidation during welding weakens the repair seam and requires rework
- Complex geometries are inaccessible to standard fixed-angle welding heads
Engineering
Technical Features
- YAG laser source with 1064 nm wavelength
- Digital control system with capacitive touchscreen and multi-language interface
- 10X stereo microscope with high-speed liquid crystal light valve and optional CCD camera display
- Rotating welding head offering 360-degree angle adjustment
- Ceramic or metal condenser cavity depending on power model
- External water cooling system with 1P to 3P chiller options
- Xenon lamp life exceeding 8 million pulses
Specifications
Published Figures For Mold Repair Laser Welding Machine
Every value below is taken from the machine data sheet. Where a range is given the exact figure depends on the model and power you order.
| Model | WH-MW200 / WH-MW300 / WH-MW400 / WH-MW500 |
|---|---|
| Max Output Power | 200 W / 300 W / 400 W / 500 W |
| Laser Type | YAG |
| Wavelength | 1064 nm |
| Max Single Pulse Energy | 100 J / 110 J / 120 J / 140 J |
| Peak Power | 8 KW / 12 KW / 18 KW / 24 KW |
| Max Pulse Frequency | <=30 Hz / <=30 Hz / <=40 Hz / <=50 Hz |
| Pulse Width | 0.1-6 ms / 0.1-6 ms / 0.1-8 ms / 0.1-10 ms |
| Welding Depth | 0.1-1.5 mm / 0.1-2 mm / 0.1-2.5 mm / 0.1-3 mm |
| Focal Diameter | 0.3-3.0 mm |
| Worktable Travel | X: 200 mm, Y: 100 mm, Z: 200 mm |
| Work Range | X: 400 mm, Y: 200 mm, Z: 700 mm |
| Loading Ability | <=200 kg |
| Power Supply | AC220V/50Hz-60Hz / AC380V/50Hz-60Hz |
Materials
Materials It Handles
- Metal moulds
- Thin-walled parts
- High melting point materials
- High hardness materials
- Special materials
Working Process
From File To Finished Part
Mount the mould or part on the worktable within the 200 x 100 mm travel range
Adjust the 10X stereo microscope and CCD camera to focus on the repair area
Select welding mode and parameters on the digital control touchscreen
Rotate the welding head to the required angle for the joint
Execute spot, butt, overlay or sealing weld with minimal heat input
Inspect the seamless weld result through the microscope
Quality Control
Quality Control Before Shipment
- Ceramic condenser cavity ensures consistent laser output and long chamber life
- Xenon lamp life is rated for more than 8 million pulses
- External water cooling maintains stable laser temperature during operation
- Digital control system provides repeatable parameter settings for consistent welds
Options
Customisation Options
- Choose output power from 200 W to 500 W based on required welding depth
- Select ceramic cavity for 200 W and 300 W models or metal cavity for 400 W and 500 W
- Opt for CCD camera display for enhanced visual monitoring
- Configure power supply for AC220V or AC380V input
- Select water chiller capacity from 1P to 3P based on ambient conditions
Comparison
How It Compares With The Alternatives
| TIG welding | Laser welding offers a much smaller heat-affected zone, reducing the risk of mould deformation and the need for preheating |
|---|---|
| Soldering | Laser welding creates a metallurgical bond suitable for high-hardness and special materials, whereas soldering is limited to lower strength joints |
| Manual arc welding | The 10X microscope and digital control allow for precise repair of fine details that are impossible to achieve with manual arc welding |
Operating Notes
Use Guide
- Ensure the external water chiller is filled and running before starting the laser
- Clean the lens and microscope optics regularly to maintain clear visibility
- Use the 360-degree rotating head to position the laser for optimal access to the weld seam
- Select the appropriate pulse width and frequency for the material thickness to avoid burn-through
- Allow the machine to cool down after extended operation to preserve lamp life
Buyer Questions
Mold Repair Laser Welding Machine FAQ
What is the maximum welding depth?
The 500 W model can weld depths up to 3 mm. The 200 W model is rated for 0.1 mm to 1.5 mm, and the 300 W model for 0.1 mm to 2 mm.
Does the machine require preheating?
No, the laser welding process does not require preheating, which speeds up the repair cycle for moulds.
What materials can be welded?
The machine is designed for metal moulds, including high melting point, high hardness, and special materials.
How large is the work area?
The worktable travel is X: 200 mm, Y: 100 mm, Z: 200 mm, with a total work range of X: 400 mm, Y: 200 mm, Z: 700 mm.
What is the lifespan of the xenon lamp?
The xenon lamp has a life of more than 8 million pulses.
Can I see the weld clearly?
Yes, the system includes a 10X stereo microscope and an optional CCD camera display for high-definition observation.
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