Picture this: You work for a company that manufactures medical devices, and you just received a for design and development. The new client wants a prototype, but it requires welding small, very complex parts – all of which are made of different metals.

And, of course, the sensitive components can’t be damaged, nor can the welding process affect the overall performance of the devices.

Sound challenging enough? That’s where micro welding enters the picture.

This specialized welding technique is ideal for small, delicate components from different metals. Micro welding machines use low current and voltage settings to produce precise, controlled welds.

The end result is a strong, reliable, and a nearly invisible weld. They’re ideal for high-quality applications including medical devices, electronics, and aerospace components, to name a few.

Here are some of the most common types of micro – welding and some of their most common applications:

Laser Welding

Used for medical devices, electronics, and automotive parts, laser welding uses a focused beam that heats and melts the materials that need to be welded. This laser beam produces high energy in a small area; hence, why it’s used for small and delicate components. Laser welding is non-contact, too, meaning there is no risk of damaging the components during the welding. Due to the slow nature of heating, laser welding can often produce larger than desired heat affected zones(HAZ).

TIG Welding

Tungsten Inert Gas (TIG) welding uses a tungsten electrode to produce an electric arc which melts the materials that will be welded. It’s known for producing high-quality, precise welds with minimal distortion and is therefore ideal for welding stainless steel, aluminum, and other non-ferrous metals. It’s commonly used in aerospace and medical applications.

Resistance Welding

This combines heat and pressure to join materials, which are placed between two electrodes. The ensuing electric current that passes through them generates heat, which melts and fuses the materials. Best used for small and delicate components, resistance welding is commonly used in the electronics industry.

Micro TIG Welding

This is a specialized form of TIG welding that uses a smaller tungsten electrode and a lower current setting to produce precise welds. It’s typically used for small and delicate components and is a favorite of the medical device industry.

Percussion Welding

This specialized form of welding uses an electrical discharge and a rapid impact to weld the materials. The process is quick, efficient and produces reliable, high-quality welds with no filler metals or filler materials. Commonly used in the aerospace and automotive industries, percussion welding is ideal for dissimilar metals.

How big is the order? Or what about the size and complexity of the components you’ll be working on? Are you using dissimilar materials? And what’s the desired precision and reliability? Micro welding equipment is necessary if you need precise and reliable welds on small and delicate components.

Contact us today to discuss your specific micro welding application and how percussion welding may be a fit.

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