Permanent Joining Methods

Front

Demonstrate understanding of permanent joining methods.

Back

Permanent joining methods include soft soldering, brazing, and welding.

Front

Describe soft soldering.

Back

Soft soldering is the process of permanently joining metal parts using a filler metal that melts below 450°C.

Front

What is the main feature of welding?

Back

Welding uses a higher temperature to melt and join metal parts together.

Front

Why is a soldering iron preferred for electronic components?

Back

A soldering iron is used to avoid burning components and the PCB, unlike a gas torch.

Front

Soldering process step 1

Back

Ensure copper tracks/pads on the PCB are free from grease and fingerprints.

Front

Brazing vs. Welding

Back

Brazing is more precise and can join dissimilar metals, but is not as strong as welding.

Front

Knock-down fittings are used for assembling products.

Back

They are used in flat pack furniture, kitchen units, beds, etc.

Front

Types of knock-down fittings.

Back

Include cabinet screws, cam lock fittings, cross dowels, and shelf supports.

Front

Cam lock fittings provide a precise finish.

Back

The cam lock is hidden to maintain the aesthetic look of the product.

Front

Knock-down fittings are cost-effective.

Back

They do not require expensive equipment or skilled labor.