Z-Tech Advanced Technologies, Inc. | Laser Welding Applications
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Laser Welding Applications

Laser welding process offers the most flexible and versatile metal joining process in today’s manufacturing environment. A Laser (Light Amplification by Stimulated Emission of Radiation) delivers a concentrated heat source at a relatively short time duration resulting in narrow, deep welds at a high rate. The process has been adopted by many industries such as medical device manufacturers, automotive, jewelry, plastic injection mold makers, electronics, and dental laboratories to name a few.

Laser welding has many advantages over conventional welding processes such as TIG, MIG, or electron beam welding (EBW). Laser welding produces minimum heat-affected zones (HAZ). In addition it can generate high rates of heating and cooling so very thin materials can be processed without deformation or warping. Another advantage is that laser welding beam can be transmitted through ambient air rather than requiring a vacuum or inert gas shielding environment resulting in a very clean and high quality weld.

Today’s Laser welding machines are capable of welding both similar and dissimilar metals in addition to most industrial alloys and  high reflective metals such as copper, silver, and gold and less reflective metals such as tool steel, stainless steel, titanium, platinum, and palladium.

Medical Laser Welding Applications

  • Dental bridge work
  • Medical implants
  • Orthodontic wire and bands
  • Adding occlusion
  • Cardiac pacemakers
  • Prosthetics
  • Endoscopes
  • Hearing aids
  • Guide wires
  • Catheters
  • Ultra sound modules
  • Defibrillators
  • Dental braces
  • Medical stints

Dental bridge cut due to rocking
Dental bridge after welding
Dental bridge adding margin
Nickel Chrome orthodontic dental appliance
Pacemaker components made of platinum and titanium prior to welding
Pacemaker components made of platinum and titanium after welding
Internal shaft of micro piston showing welded shaft and support spring
Titanium medical stint
Micro cylinder for surgical manipulator

Industrial Laser Welding Applications

  • Ultrasonic sensors
  • Thermocouples
  • Solenoid valves
  • Level sensors
  • Chemical injectors
  • Bellows
  • Plastic injection molds
  • Hot runners
  • Pad locks
  • Pressure vessels
  • Ball bearings
  • Motor rotors
  • High speed rotary tools
  • Stamping dies

Welding on tip of a H13 mold insert
Welding on edge of P20 mold insert
Laser welded S7 mold cavity
Laser Repaired Edges on 420 SS Mold Cavity
Broken Edge on D2 Mold Prior to Laser Welding
Laser Welded Broken Edge on D2 Mold
D-Icing probe for a CRJ jet made of beryllium copper and nickel
D-Icing probe for a CRJ jet made of beryllium copper and nickel
Laser welded S7 mold cavity
Plastic injection mold component made of H13 tool steel
Welding sample on 420 stainless steel insert
Micro watch mechanism brass on stainless steel coil
D2 tool steel plate
Laser welded titanium tube
Titanium Ball Float
Laser Repaired 420 Mold Cavity

Jewelry Laser Welding Applications

  • Re-tipping prongs
  • Assembly of jewelry
  • Refilling casting porosity
  • Spot and seem welding
  • Welding hallow jewelry
  • Resizing ring shanks
  • Welding micro chains
  • Fashion jewelry repair (pewter)
  • Assembling bracelets
  • Repairing titanium jewelry
  • Optical frames
  • Surface polishing
  • Bezel building
  • Channel building

67 Ct citrine caged in 19 Kt white gold
154 Ct amethyst caged in platinum
Citrine and amethyst pendant caged in stainless steel
Cluster of faceted aquamarine briolettes welded on stainless steel screw
Jewelry assembled by laser courtesy of JW Currens Inc.
Jewelry assembled by laser courtesy of JW Currens Inc.
Jewelry assembled by laser courtesy of JW Currens Inc.
Laser welded bezel set cabochon amethyst
Spider stainless steel body jewelry
Star stainless steel body jewelry
Dragonfly stainless steel body jeweler
Clear quartz gemstone caged in 316 L stainless steel wire
Stainless steel wire welded into a basket with laser bezel set aquamarine amethyst and topaz
Stainless steel wire welded into a basket with laser bezel set amethyst
Faceted aquamarine briolettes welded around a dime
14 Kt white gold wire ends balled onto pearl without damage to pearl surface
Stainless steel wire coiled and welded into a flower sculpture
Laser welded stainless steel wire artwork
Laser welded artwork
Wood ball encaged by stainless steel jump rings without any damage to surface
Titanium wire, tubing, and balls welded into artwork
Stainless steel artwork welded from jump rings
Stainless steel artwork welded from jump rings
Stainless steel wire welded around screw thread
316 L stainless wire coiled around screw heads
Laser welded titanium framed reading glasses
Faceted aquamarine briolette w/ 18kt yellow gold wire balled
18kt gold balled onto red coral without burning surface

Electronics Laser Welding Applications

  • PCB’s
  • Electrical connectors
  • Relay terminals
  • Lithium batteries
  • Harness assemblies
  • Smart cards
  • Electrode bonding
  • Arc lamp terminals
  • Automotive air bag triggers
  • Microwave modules
  • Switches
  • LCD panel contacts
  • Power CSR
  • Thermocouples

Q-wave sensor with 4047 cover and 6061 aluminum housing prior to welding
Q-wave sensor aluminum housing with hermitically welded seal
Laser welded cell phone 4047 aluminum lithium battery housing
Cluster of faceted aquamarine briolettes welded on stainless steel screw
Inconel thermocouples before welding
Inconel thermocouples after welding
Laser welded power supply circuit board
Laser welded electronic circuit board