#Chief self piercing rivet gun install#

Friction stir is a more time consuming process (2‒5 s) than RSW (<1 s) and SPR (1‒2 s), and clinching is normally used to join non-load bearing structures, such as trunk lid and engine hoods due to its low joint strength. RSW, on the other hand, is typically used in welding steels than welding other light alloys. This is because hybrid use of different lightweight alloys, such as magnesium with aluminium alloys or aluminium with advanced high strength steel can sometimes be difficult or impossible to weld due to differences in thermal, physical and chemical properties.Ĭompared with other joining techniques such as RSW, friction stir spot welding (FSSW) and its variant “linear” friction stir welding (FSW), clinching and adhesive bonding, SPR has proven to be an effective process to join dissimilar materials, from aluminium with composite to aluminium with advanced high strength steel. The increasing interest in the use of lightweight and high strength ratio materials in vehicle fabrication to reduce the weight of vehicle is due to the urgent need to reduce fuel consumption and greenhouse gas emissions, and hence, is partly the cause of renewed interest in SPR technology. Since then, a significant progression has been the application of SPR technique to both space frame (Audi A2) and monocoque designs (Jaguar). SPR only rose to prominence during the last decades when it was adopted by Audi to join the structural panels in the all-aluminium Audi A8. Although RSW of aluminium is still possible using specially designed electrodes, SPR is still the most preferred option for joining aluminium components. Aluminium can also react and contaminate the copper spot welding tip, reducing the tool life. RSW is not suitable for aluminium joints because aluminium has high thermal conductivity and low melting point the electrical conductivity of aluminium also makes the electrical current requirement for RSW process high. It was first developed as an alternative to the resistance spot welding (RSW) process for joining of aluminium. Self-piercing riveting (SPR) process was originated around half a century ago and it was mainly used by appliance and packaging industry. This paper is divided into three major sections: 1) joint failures focusing on joint defects originated from the SPR process and joint failure modes under different mechanical loading conditions, 2) joint corrosion issues, and 3) joint optimisation via process parameters and advanced techniques. In this paper, SPR joints of advanced materials and their corresponding failure mechanisms are discussed, aiming to provide the foundation for future improvement of SPR joint quality. However, SPR joining of these advanced light materials remains a challenge as these materials often lack a good combination of high strength and ductility to resist the large plastic deformation induced by the SPR process. The application of SPR in the automotive sector has become increasingly popular mainly due to the growing use of lightweight materials in transportation applications.

#Chief self piercing rivet gun install#

Optional attachment kits are available to install blind rivets as well as blind nuts and blind bolts.Self-piercing riveting (SPR) is a cold forming technique used to fasten together two or more sheets of materials with a rivet without the need to predrill a hole. The rivet gun can be used to press out or install self-piercing rivets and to punch precisely sized holes to accept flow form or blind rivets. This allows the technician to control the output compressive force as well as the retract tension force. It delivers the force needed to repair today’s cab structures, as well as future trucks that will likely incorporate even more high-strength metals.”Īccording to Chief, the Heavy-Duty Rivet Gun includes a dial to provide infinite adjustment of the working pressure. “This means it smoothly punches in self-piercing rivets, and then easily powers back out of even the thickest sheet metal materials. “The Chief Heavy-Duty Rivet Gun has the advantage of strong two-way operation – it powers out and it powers back,” explains Lee Daugherty, director of collision sales, the Americas, for Chief parent company Vehicle Service Group (VSG).

It also uses 8 metric tons of tension force to hydraulically retract the punching tool from metal sheets.

Chief announced its Heavy-Duty Rivet Gun puts out 10 metric tons of compression force to install new rivets or press out existing rivets in the thick steel and aluminum used to build heavy-duty truck cabs.