RSW (Resistance Spot Welding) Systems

What is Robotic Resistance Spot Welding? What should I consider when deciding between systems?

[Pictures of Robotic Spot Welding (RSW) systems Stryver built are below]

Resistance Spot Welding (RSW) is a process where metal pieces are fused together by a high concentration of heat and subsequent cooling produced by a strong electrical current at the bonding site. Spot Welding is an excellent welding process for quickly fastening parts to one another, since fusion can be completed within fractions of a second. It also is an ideal type of welding to automate. With the help of robotic automation, resistance spot welding can help your production facility churn out parts more quickly and efficiently than can manual spot welding or pedestal spot welding alone. Robotic spot welding can ensure that your part is welded properly and precisely through careful placement and programming of the robotic spot welding arm, ensuring repeatable results that human welders guiding a part under a pedestal welder throat cannot match. Robotic RSW Welding can also apply to projection welding ( robotic projection welding & robotic weld nut welding ), and depending on situation, robots can also be used to automate other RSW processes such as seam welding, induction welding, or ultrasonic welding.

What does Stryver typically consider when building a Robotic RSW Welding System?

  1. Where are the weld points located on the part? How can the robotic system be designed to allow the robot to reach each weld point while minimizing robot reach and cell size?
  2. What kind of tooling and positioners will be used with the robotic spot welding cell?
  3. Will any automated material handling need to occur? If there are any weld nuts, will the weld nuts be bowl fed in?
  4. How many total spot welds are included in the system, and are they all on the same plane? If there are many spot welds and all are on the same plane, a custom spot welding machine may be worth considering instead to save cycle time and cost
  5. Does any data collection need to occur to ensure no cold welds or other N/G welds happened during the robotic spot welding or other RSW welding cycle? What preventative processes need to be designed in to ensure no N/G robotic resistance welded parts make it back to the operator to put in finished goods?

All robotic spot welding systems are designed with your complete process in mind. Proper thermal conditions, electrical conductivity and welding environment are guaranteed for the process. Our highly skilled engineering staff ensures the fixture will be neither over-engineered nor under-engineered for your application, minimizing the amount of exotic, high-cost materials necessary to handle the extreme conditions present at the spot weld. Stryver fixtures are designed specifically for your application. We design what will work best in your production space, maximizing ease of use and assimilating the RSW fixture into your production line. Trust Stryver’s 20+ years of robotic fixture experience to get the job done.

Please see below for pictures of Robotic spot welding systems Stryver has built: