Abstract
AbstractIn the automobile manufacturing industry, resistance spot welding (RSW) is widely used, especially to build the car's body. The RSW is a standard and wide‐ranging joining technique in several assembling ventures, showing a wide range of possibilities for a competent procedure. Robots are commonly used for spot welding in various industrial applications. After completing assembling design, interest increases to improve the designed processes, cost‐reduction, environmental impact, and increase time productivity when all is said to be done. In this paper, the robot movement between two welding points, a path followed while spotting, gripping and payload‐carrying activities, numbers of holds, moves, and a possibility to enhance interaction between four Robots were analyzed using an offline Robot simulation software “DELMIA‐V5.” The body shop assembly line of the SML ISUZU plant has four robots that perform about 209 welding spots in 532 s. The optimal model reduced the whole welding cycle time by 68 s, and after modification and proper sequencing, a12.7% reduction in cycle time was achieved. The offline Robot simulation software “DELMIA‐V5” has good potential to produce optimal algorithms while saving precious time. It enables an organization to promote higher quality and to encourage meaningful creativity by reducing design flaws.
Highlights
Spot-welding assembly lines are extensively utilized in the automotive industries
The energy consumption and cycle time were optimized for the robotic assembly line, and robots were assigned at best-fit workstations to balance the assembly line.[28]
By doing sequencing in the program evaluation and review technique (PERT) chart, reducing holding time and its time of occurrence, we developed one cycle by adding or eliminating few tasks
Summary
Spot-welding assembly lines are extensively utilized in the automotive industries. Many robots are employed with spot welding to build the body of the vehicles. Major trends and developments in RSW are optimization of welding processes, investigating new high-performance robotic welding guns, deploying self-regulating process control, quality assurance, and developing hybrid and virtual welding processes.[25] The DELMIA-V5 robotics utilized to simulate the Kuka robot environment to avoid collisions, and enhance path planning, and physical dimensions while implementing in the real workstation.[26] A simulation-based method was proposed to reduce coordination cycle time losses in an automatic robot line balancing It reduces robot weld loads and optimized robot coordination significantly.[27] The energy consumption and cycle time were optimized for the robotic assembly line, and robots were assigned at best-fit workstations to balance the assembly line.[28] An offline-line arrangement was presented using DELMIA-V5 robotics for edifice robotic arc welding workstation within the learning workshop context.[29] DELMIA allows manufacturers in any industry to define, plan, create, monitor virtually, and control all production processes. Design and motion planning of multi-robot assembly cells for body in white spot welding
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