DOYA YAG Laser Welding Machine for Jewellery (DWJ-150 / DWJ-200)

YAG Laser Welding Machine for Jewellery (DWJ-150 / DWJ-200) 

The DOYA DWJ Series Jewellery Laser Welding Machine offers a highly accurate and stable welding solution for delicate metal components—far surpassing the capabilities of traditional welding methods. Designed for precision, reliability, and versatility, it is ideal for jewelry fabrication, repair shops, and industries requiring micro-scale welding.

Spot Welding Principle

The DWJ Series uses laser spot welding, a heat conduction–type process.
Laser radiation heats the surface of the workpiece, and thermal energy diffuses inward to create a controlled molten pool.
By precisely controlling:

• Laser pulse width: 1.5–20 ms
• Pulse energy
• Repetition frequency: ≤ 50 Hz

The system ensures accurate, clean, and structurally strong welds with an extremely small heat-affected zone.

Precision Applications

The machine is widely used across multiple industries, including:

Jewellery Repair & Manufacturing

• Re-tipping
• Resizing
• Perforation
• Stone caging
• Gap bridging
• Ideal for intricate gold, silver, and platinum designs

Medical & Eyewear

• Welding medical instrument components
• Titanium alloy dentures
• Eyewear and optical frames

Micro Components

• Small automotive parts
• Electronics
• Precision instruments

Key Features

Broad Material Compatibility

Capable of welding both precious and high-reflective metals, including:

• Gold
• Silver
• Platinum
• Titanium
• Copper
• Nickel
• Stainless Steel

High Stability

• Engineered for 24-hour continuous operation
• Supported by a high-performance water cooling system

Shield Gas Protection

• Equipped with rapid Argon gas connection
• Prevents oxidation and ensures clean, bright weld joints