How to choose self-piercing rivets

Update:01 Nov 2019
Summary:

Overall characteristics of punching rivets Self-piercin […]

Overall characteristics of punching rivets
Self-piercing rivets are divided into several series according to their geometric shapes and specifications. Each series is based on different materials such as self-piercing rivets, rivet head method, and shank diameter.
And the length is divided into many different types, all-round consideration of processing regulations and application requirements;
To select the best rivet for a given riveting process, many of the main parameters of the process and key points of the process must be considered. After selecting the rivet, it should be matched with the customer.
The household actually uses the riveting equipment of the situation. The following key points are usually taken into account when selecting rivets:
Typical application characteristics
Type of board aluminum alloy plate, thick steel plate, plastic plate or sandwich panel
Lower strength material cold rolled steel or aluminum alloy sheet
Medium-level strength material Hot-rolled thick steel plate, extruded sheet or forged sheet
Low tensile strength material Medium carbon steel, non-ferrous metal aluminum alloy or plastic plate
High tensile strength material HSLA steel or DP&TRIP steel
The total thickness of the board is 1 mm to 6 mm steel, 1 mm to 12 mm aluminum
Composite riveting of a variety of material plates Plastic + metal material, aluminum alloy plate + thick steel plate
Functional car, house
Non-functional furniture, wooden cabinets, spare parts, etc.
The riveting equipment that actually uses the condition. The following key points are usually taken into account when selecting rivets:
Typical application characteristics of the case board type aluminum alloy plate, thick steel plate, plastic plate or sandwich plate lower strength material cold rolled thick steel plate or aluminum alloy plate medium level strength material hot rolled thick steel plate, extruded plate or forged plate Low tensile strength material carbon steel, non-ferrous metal aluminum alloy or plastic sheet high tensile strength material HSLA steel or DP&TRIP thick steel sheet group total thickness 1 mm to 6 mm steel, 1 mm to 12 mm aluminum various material board Composite riveted plastic + metal material, aluminum alloy plate + thick steel plate functional car, house non-functional furniture, wooden cabinet, spare parts, etc.
Rivet head way
The selection of the rivet head method usually requires the application of the riveting characteristics of the scene or the consideration of the aesthetic level. The requirements of the riveting characteristics level will be:
Riveting end of steel fittings; cutting, detachment and fatigue limit tests;
The marking part is terminated by mechanical equipment; the surface layer is supported;
Requirements for event processing techniques;
Advantages of countersunk rivets: riveting and shaking the head is very flat; the fatigue limit is high;
Advantages of round head rivets, pan head rivets and ball head rivets:
Shows a very large tightening force, especially for metal sheets that are plastically deformed or thinner than metal sheets;
Ensure that the top of the rivet head is accurately positioned, especially for plates that are too thick or hard;
Highlighting the aesthetics of the riveting point or covering the dent at the root of the rivet;
Unique rivet head way
When it is necessary to apply self-piercing riveting and other processing techniques, it is necessary to consider the application of a unique rivet head method, such as self-piercing riveting anchor bolts, self-piercing riveting.
Pin and T-type self-punching nails;
Rivet length and shank diameter
The length of the rivet must be combined with the thickness of the riveted plate to take into account that a certain length of rivet can cover the necessary range of the board to be thin and thick, for the riveted board
The strength and thickness of the group can be confirmed by experiments to determine the best length of the rivet. Rivets are available in 3mm and 5mm diameters, with moderate rivet diameters
The specification is: the tightening force required for riveting; the use performance required for riveting; the limitation of the indoor space level; the thickness and strength of the riveted plate;
Self-piercing rivet and tape self-piercing rivet
The portable automatic self-piercing riveting machine is applied with a belt-type rivet for automatic nailing, and is used for the automation technology of troublesome mobile.