Riveting Defects In Sheet Metal Work

A straight metal piece is connected through the parts.

Riveting defects in sheet metal work.

Rivets are specified by their length material size and shape of head. Rivets before modern welding techniques came into common use riveting was one of the most common methods for joiing sheet metal. You hear a pop sound the rivet gun comes away and the process is done. Damage that exceeds the scope of these items is in most cases major.

However the sheet metal worker will often use rivets on sheet metal too heavy for machine forming and where welding is not practical. Screw joint fasteners. Rivets have many uses such as in the construction and sheet metal industries. The so called self riveting is to use the mutual deformation between the sheet metal to complete the mutual fixation.

Before driving any rivets into the sheet metal parts be sure all holes line up perfectly all shavings and burrs have been removed and the parts to be riveted are securely fastened with temporary fasteners. Once the rivet cannot be compressed further all of the force goes into pulling on the shank until it breaks at that notch. In sheet metal work riveting is done where. Types of rivet 8.

Minor damage to a sheet metal structure includes missing or damaged rivets scratches or small dents a small crack and a corroded sheet metal surface. However the sheet metal worker will often use rivets on sheet metal too heavy for machine forming and where welding is not practical. Although this method is simple it is often used in places where it is not disassembled. The metal work piece used to form the connection may be hollow or it may be solid.

Brazing is not suitable the structure changes owing to welding heat the distortion due to welding cannot be easily removed etc. Process of riveting lap rivet butt rivet rivet joint 9. Rivets are made of ductile materials like low carbon sheet mild steel brass copper yellow brass aluminium are their alloys. In this metal joining process the metallic parts are joined together by means of bolt screw and or nut.

Since the advent of the new welding techniques and modern machines that form seams on sheet metal riveted seams are not so common in modern sheet metal work. If leather is being fastened with a rivet make sure that the rivet is made of aluminum copper or brass as the moisture in leather can cause steel rivets to rust. The type of metal used in the rivet you choose is important and should be matched to the sheet metal being joined whenever possible. The secret to the pulled rivet is a small notch in the shank that is an engineered weak point in the design.

Then both ends are formed over the connection joining the parts securely.