Soldering, brazing & welding are all methods of joining two or more pieces of metal, but each are different.

What is metal soldering?
A low-temperature analogue to brazing. soldering takes place with fillers (also known as solders) that melt at below 450°C. The filler, called solder, melts. When it solidifies, it is bonded to the metal parts and joins them. The bond is not as strong as a brazed joint or welded one. The base metal doesn't melt but the solder filler does.

What is metal brazing?
Brazing is a metal-joining process in which two or more metal items are tightly joined together by melting and flowing a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Brazing is done at a higher temperature to soldering and has a stronger join. The base metal doesn't melt just the brazing rod.

What is Arc welding?
A type of welding that uses a welding power supply to create an electric arc between an electrode and the base material to melt the metals at the welding point. They can use either direct (DC) or alternating (AC) current, and consumable or non-consumable electrodes. The actual base metal does melt and no solder is involved or needed.

Safety
Since two gases are being mixed with soldering in an oxygen/acetylene or LPG system there is potential for a flashback, which is the ignition of mixed gases. This safety concern is reduced with an air/acetylene torch since only a single gas is being used. Always wear protective clothing & eye wear when working with gas or chemicals & open flames.

The PUK5 is the latest generation of precision welding machines from Lampert. Designed & developed by goldsmiths for goldsmiths – you weld and this amazing machine takes care of the details. Weld easily and on virtually all metals and combinations, on findings, easily add metal, weld adjacent to stones, weld silver (alloys), fill porosity, attach work pieces prior to soldering, weld seams, and much more.

• Extremely simple touch screen operation
• Select metal – select welding situation – weld!
• Pre-set programmes for standard metals such as gold, silver, platinum, palladium, brass, Tin, stainless steel, titanium & Aluminium & for common welding situations
• Made in Germany with 3 Year Warranty

Dental PUK D2 also available - click here for more info

Process produces hydrogen & oxygen gas from a combined mixture of (distilled water, a basic chemical compound & electricity) all channelled through a light weight easy to hold torch, makes a nice, hot burning flame, up to 3200° Celsius. Highly concentrated “pin-point” Micro Flame that is easy to adjust. A variety of applications: Jewellery, orthodontics, plastics, and other light manufacturing industries.

Clean & VERY safe. NO cylinders. Very mobile.

Solders in the most tiny places and precise work with a concentrated thin flame. Up to 6500 F . Includes 5 sapphire tips . LPG & oxygen or acetylene. Braided colour coded hose.

Extra tips, hoses & melting nozzles available too.

Very portable torch used with Liquid propane gas & room air for soldering, annealing or general craftwork. Concentrated flame reaches temperatures up to 2400° F (1315° C). The torch operates on direct tank pressure. Complete torch outfits include the torch body, three torch tips and gyratory terminal( tail piece). Please NOTE the torch does not include the hose, flashbacks or any further gas related fittings. Ideal hose required 3/16″ or 6mm LPG high pressure flexible rubber hose.