Product Description

DURMAPRESS® Laser welding provides an efficient and stable process due to its high precision and fast production rate which has many applications in the electronics and automotive industry. Traditionally, laser welding is done with a fixed welding head with a higher power laser having lower beam quality to give acceptable weld widths as single mode beams are too sharp leading to very narrow weld profiles. In contrast wobble welding (or oscillation welding) is where a high beam quality laser is used with a galvo scan-head to rapidly oscillate the focal spot. This method of welding enables much easier control of weld parameters such as weld width and depth of penetration which can lead to a more efficient welding process.

Application of DURMAPRESS® Handheld Laser Welder

DURMAPRESS® Handheld fiber laser welding machine is suitable for stainless steel, carbon steel, silicon steel sheet, copper, aluminum alloy, gold, silver, chromium, nickel, titanium, tantalum and other metals or alloys as well as welding between various dissimilar materials.

It is widely used in the complicated and irregular welding processes of cabinets and kitchens, stair lifts, shelves, ovens, stainless steel doors and windows guardrails, distribution boxes, stainless steel furniture, metal sheet metal and other industries. Typical application industries are sheet metal, chassis and water tank, door and window frames, kitchen and bathroom hardware, billboards and advertising metal words, etc.

 

Two Kinds of Fiber Laser Welding For Different Product Design Needs

Autogenous Welding

Materials are joined without the addition of extra filler materials which requires the highest level of fixturing and joint preparation.

Welding seams can be formed completely by melting part of the base material without using additional filler

Joint fit-up gap: Since no material is added, it is necessary for the materials to be welded to remain in intimate contact during the welding process.

Fixturing: Fixturing to ensure consistent fit-up of the weld joint is a key to successful fiber laser welding. An important benefit of fiber laser is welded joints with exceptional cosmetic appearance. In some cases, these welds are almost perfectly blended with the surrounding material. Depending on the fixturing and joint fit-up, some welds may have small amounts of concavity (which may not be acceptable for product designs that require fatigue properties similar to those of the base material) or convexity.

Additive Welding

Material is added to the weld joint usually in the form of metallic wire or powder.

Three reasons for adding material to the weld are:

Joint fit-up: By adding external material, the joint becomes more tolerant to joint mismatch. Acceptable welds may be produced from joints with less than perfect fit-up.

Weld geometry: Addition of filler metal is used to control the shape and size of the weld. Maintaining a crown (convex surface of the weld) creates a reinforcement which is important for joints requiring mechanical strength and fatigue life in the overall product’s design performance.

Dissimilar metals: Filler metal is added to facilitate welding of dissimilar metals and alloys which are otherwise metallurgically incompatible.

 

Welding Head Position

With welding head position proof-reading and welding positionverification function, the welding position is more accurate, and the welding seam is smooth and beautiful.

•Interface type: QBH

•Focus focal length: 120/150

•Laser power: 2000W

•Adjustable width: 0-- 5mm

•Collimating focal length: 50/75

•Overall quality: 1KG

Hand-Held Swing Welding Head

Advantages :

Standard Welding Heads or Wobble Welding Heads ?

Handheld Fiber Laser Welding Machines with standard welding heads are designed to focus a collimated laser beam to a required spot size, keeping the beam path static through the beam delivery and a static spot at the focal plane. This standard configuration limits each setup to a specific application.

Handheld Fiber Laser Welders with Wobble welding heads incorporate scanning mirror technology inside a standard weld head. By oscillating the beam with internal mirrors, the focal spot is no longer static, and can be dynamically adjusted by changing the shape, amplitude, and frequency.