Welding / Assembly

Welding / Assembly

Utilizing a diverse robot welding line to
quickly produce high precision products

Hiraoka Body conducts high precision assembly primarily with arc welding and spot welding, and in recent years we have also introduced laser welding. We have also included robotic inspection processes in the assembly line, making work easier and establishing manufacturing quality. We are also working on space saving and labor saving initiatives. With hybridization of the car body assembly line, we are also promoting synchronous production that manufactures and ships parts for different cars according to the manufacturer’s production plan. Through initiatives that eliminate any room for human error, such as the introduction of automated jig switching and traceability technology in response to online orders, we have eliminated mistaken deliveries.

Spot Welding

In spot welding, the main force behind welding assembly, welding guns (C-shape and X-shape) and arms are mounted to multi-axis robots, and the mold face of the panel used as a material is pressurized and simultaneously welded with preset conditions (welding current, welding time, etc.), which saves space and saves labor. We primarily conduct production of white bodies which form the chassis of automobiles.

Arc Welding (CO2 Welding)

Arc welding (CO2 welding) is used on parts that require strength or air-tightness, and products for which spot-welding is difficult due to their shape. As with our spot welding, Hiraoka Body has constructed an arc welding line that makes full use of multi-axis robots. For products that require consideration of aesthetics, such as SUV rear axles which are visible to users even after car bodies are completed, we have realized manufacturing unique to our company with proprietary robot teaching to reduce disorderly welding marks and sputtering.

Laser Welding

Laser welding and cutting are the latest technologies, capable of supporting modern vehicle design with its ever more complex shapes. By using a laser in place of spot welding, we can make deeper welds in a shorter time. In addition to supporting panel thickness up to 12 mm, it can more easily assemble parts with three dimensional or complex shapes than spot welding. In combination with 3D laser cutters, we respond quickly to spot-mass production needs such as specially equipped vehicles and prototype car parts.

Production management directly linked with manufacturers

Hiraoka Body employs a synchronous production system that works in sync with the production plans of automotive manufacturers via the Internet to ship “products you need, in the order you need, as needed”. We have reduced our mistaken shipment rate to nearly 0% with thorough traceability.