Sheet Metal Joining Techniques

Brazing is a method of joining metals by the use of a fusible alloy consisting largely of brass and melting at a temperature above 600 c.

Sheet metal joining techniques.

Techniques for joining sheet metal the ongoing push for thinner sheets is challenging engineers. In this screws bolts nuts studs and standoff. However an alternative way of adding open space is to take sheets or coils of metal and put it through an expanding machine. Non permanent methods include nuts and bolts screws and rivets.

Folding and adding bending tabs is one of the easiest and most economical way of making moderately strong joints in sheet metal parts that will permanently or semi permanently attach to one. Whilst many would consider a rivet a permanent. Expanding metal normally if you want to have open space in a metal object you d use a wire mesh or cut holes into a piece of sheet metal using a cnc punch laser. The riveting is carried out in the hole corresponding to the two parts and the rivet gun is used to pull.

Joining methods there are many different joining methods for fixing metal in place. But it should be remembered that it is a temporary joint. The most common methods of welding during sheet metal fabrication are listed below. Prior to riveting adjacent holes are punched.

How to join sheet metal parts. The two pieces of sheet metal connected to each other by folding or bending tabs in the form of a. 6 types of sheet metal joining techniques folding tab joints. Appliance engineers have several options for joining sheet metal including screws rivets welding bonding clinching and folding.

Which is best depends on the material its thickness and the application requirements. Sheet metal joining techniques 1. Screw joint is a type of temporary joint. Riveting is one of the oldest joining techniques to join two sheets of metal a hole was drilled or punched through and then the solid rivets with a head on one side and a cylindrical shaft were put in.

Most engineers rely heavily on mechanical fasteners. Photo courtesy general electric the appliance industry is eager to use thinner sheets of steel. Brazing produces a much stronger joint than soft soldering but requires greater heat from oxy acetylene flame. Screw joint in sheet metal.

The last important method of sheet metal fabrication is fusing small panels together to produce larger complex parts. Appliance manufacturers are under constant pressure to control their material costs. Riveting is a type of permanent joining operation.