Laser number 6. Faster and better!!

Carr’s have installed their 6th laser welding machine at Kettering, continuing the updating of the facility. This latest system from Germany as expected, is more powerful, diverse and flexible. New software options allow synchronised movements on complex geometry, so increasing weld integrity and ease of application.

Carr’s are always looking to widen the boundaries of their work. They now repair shot guns for gunsmiths, as well as tools, jewellery, machine parts, electronic devices, optical equipment etc etc.

Shooting may be the sport of Kings, but the guns still wear out or get corroded. The intricate parts of a shot gun or rifle can be repaired and refurbished like any other metal part. Often older guns have been hand made and so each part is made to fit that gun only. Laser welding is the safest way to weld only-one–on-the-planet-parts. Carr’s have now repaired many gun parts and are familiar with the steels that are used.
  

Welding Development

Carr’s Welding use a number of different laboratories for doing weld analysis. Macros ( where the join is cut up and the weld pattern photographed) are easily done and back up visual inspection. SEM analysis (Electron-microscope) is done to look at the chemical make-up of the parent and weld materials. This way, trace elements can be pin-pointed and tuned to ensure that not only are the welds crack free, but the metal is good for the life of the product.
  

Application Stories

Carr’s weld and repair bottle moulds and this is usually damage on the edge of the neck insert or on the main body of the tool. Often small nicks can be welded and hand finished, especially when the 2 halves of the tool can be put together and dressed.

The laser welds aluminium and steel tools with the same level accuracy and detail, so no weld lines or witness marks are left after the repair.
  

Welding systems at Carr’s

Stannah Stairlifts approached Carr’s Welding Techniks in 2002 to build and develop a welding system for them to weld on an insert to their rails.

The rails for carrying the motorised chair, are joined together by a short jointing tube, which is welded in place by the Carr’s Joint Tube Welder. This semi-automatic machine does 3 welds inside the tube, to weld the joint insert in position. The welds are tested to 2 tonnes. This machine has been developed over the last 2 years and is now in production at Stannah’s Blaydon facility.