Vacuum Laser Welding Machine

VACUUM ENVIRONMENT

Vacuum environment reaches 10-6 Pa

CUSTOM MADE

Equipment configuration can be customized

spatter control

Avoid welding spatter and ensure the quality

Welding monitoring

Real time monitoring of welding process

What is Vacuum Laser Welding

A molecular-level fusion process conducted in controlled vacuum environments (10⁻³~10⁻⁶Pa), where high-energy laser beams achieve metallic bonding free from atmospheric interference. This breakthrough technology transcends the physical limitations of conventional welding, delivering ultimate sealing solutions for mission-critical applications.

  • Vacuum Sealed Chamber

    Can achieve vacuum inside the sealed product cavity

  • Spatter Control Revolution

    83% extended metal vapor mean free path in vacuum reduces spatter rate to ≤0.2% for precision welding

  • Oxide-Free Welding

    Eliminates oxidation reactions (O₂/H₂O), achieving weld oxygen content <50ppm to meet medical/aerospace-grade purity standards

Precision Vacuum Generation System

Our 3-tier vacuum architecture redefines welding environment control. By integrating mechanical pumping, molecular extraction, and ionic purification technologies, we achieve surgical-grade vacuum environments ranging from 10⁻¹ Pa to 10⁻⁶ Pa. This modular system intelligently switches between turbo molecular pumps (for rapid gas evacuation) and sputter ion pumps (for ultra-clean maintenance), ensuring optimal vacuum states tailored to specific material requirements.

Tier Component Performance Functional Value
L1
Rotary Vane Mechanical Pump
Low Vacuum (10⁻¹ Pa)
Rapid pre-evacuation foundation
L2
Turbo Molecular Pump
High Vacuum (10⁻³~10⁻⁵ Pa)
Active gas molecular elimination
L3
Sputter Ion Pump
UHV (10⁻⁶ Pa)
Oil-free ultra-clean maintenance

Benefits of Laser Welding in Vacuum

  • An increase of over double the welding depth than in air
  • Parallel-sided seams with reduced nailhead
  • Increase process stability due to significantly reduced and stable plasma plume
  • Reduction of workpiece contamination by spattering and vaporisation
  • Higher-quality, pore-free weld seams
  • Low operating costs due to efficient solid-state laser
  • Welding process without inert gas
  • No requirement for x-ray shielding
  • Suitable for magnetic materials

Applicable environment

Suitable for use in cleanroom environments ranging from hundreds to millions, as well as in conventional workshops and laboratories.

implantable medical
  • Cleanroom-certified environment
  • Control of water oxygen content
  • HE Leak Rate＜1×10⁻-12Pa·m³/s
  • Example: Heart Pacemaker
Military manufacturing
  • Vacuum hermetic sealing
  • Long term vacuum maintenance
  • HE Leak Rate＜1×10⁻-12Pa·m³/s
  • Example: Metal Shell
Microwave RF
  • Inert gas environment
  • Thermal impact control
  • HE Leak Rate＜1×10⁻-9Pa·m³/s
  • Example: Filter
sensor
  • Welding penetration control
  • Vacuum hermetic sealing
  • HE Leak Rate＜1×10⁻-9Pa·m³/s
  • Example: Pressure Sensor

Relevant standards

Category Standard Scope Key Criteria
Material
ASTM F136
Medical Titanium (Ti6Al4V ELI)
Biocompatibility/O₂≤0.13%
AMS 4911
Aerospace Titanium
Tensile Strength≥895 MPa
MIL-DTL-24176
Military Kovar Seals
CTE 4.8±0.1×10⁻6/℃
Welding Process
ISO 13919-1:2023
Laser Welding Quality Class
Grade B Welds (Aerospace)
MIL-STD-2219
Military Laser Welding
Depth-to-Width Ratio≥5:1
NASM 1312
Aerospace Electronics
Thermal Cycling (-65°C~150°C)
Hermeticity Test
MIL-STD-750E
Military Sealing
He Leak Rate＜1×10⁻⁸ cc/s
ASTM E499
Helium Leak Detection
Leak Rate＜5×10⁻⁷ Pa·m³/s
GJB 548B
Military Microelectronics
Fine+Gross Leak Dual Verification
Military Spec.
MIL-STD-883
Microelectronics Reliability
Particle Impact Noise Detection
DEF STAN 02-813
Military Vacuum Sealing (UK)
He Leak Rate＜5×10⁻⁹ mbar·l/s
Scroll to Top