Home > Product information > Processing technologies of auto body frame components
Press processing
Since the beginning of the 1970s, we have been introducing the state-of-the-art transfer press machines and coil press lines in advance of our competitors. In addition, our own manufacture of press dies, which are main parts, achieves high quality and high efficiency of production in stamped products. We have consistently led the industry in terms of our adoption and use of advanced technologies.
Welding processing and assembling
Various parts made in the press process are assembled into frame components (e.g., pillars) of the car and products around the cabin (e.g., the dashboard). All lines are synchronized with our customers' production lines. Thus, we manufacture a variety of products on a timely basis to satisfy our customers' delivery instructions. Our lines are designed to be flexible to enable them to respond immediately to fluctuations in production by our customers (e.g., an increase in variety or quantity). In addition to automated lines by robots over all processes and high-speed die changing apparatuses corresponding to a variety of products, both ROBOCAD and off-line teaching enable reductions in insertion man-hours for new models. We immediately adapt to the ever-changing needs of the market and achieve high productivity.
Tailored blank welding technology
Our tailored blank welding system, which uses a mash seam welder and a laser welder, enables our auto parts to achieve lighter weight and high strength. This is achieved by jointing regions of the required strength with thick steel plates, and general regions with thin plates, at the previous stage of the press processing of auto body components. The system contributes significantly to a product design aimed at achieving lightness in the auto body.
Mash seam welding
This welding technology involves superimposing both ends of a steel plate and then pressurizing them, conducting electricity between them, and welding them while rotating the ring of a disk-like electrode on both ends. This technology, which is applied to large parts, such as dashboard lowers, developed in Japan, is the first of its kind in the world.
YAG laser welding
YAG is an acronym for Yttrium Aluminum Garnet. This type of welding is a precision processing by extremely fine and stabilized density laser beam. This welding is very useful for processing hard and inherently brittle materials, hard-to-work materials, and new materials. It is also useful for detailed processing, as there is little distortion under heat influence.
High-frequency induction hardening technology
In order to achieve lighter weight of auto body as the environmental requirement of an automobile and the collision safety standards in each country, "lighter weight" and "strength" of the auto body components are essential. In particular, auto body components vulnerable to side impact must be light and possess high strength. We have developed such auto body components by using high frequency technology that enables regions requiring strength to be hardened.
