Car Production Process: Welding | Toyota Virtual Plant Tour | Company | Toyota Motor Corporation Official Global Website

02

WELDING

Bringing Together
Various Parts
to Form a Car

Assembling
the Car Body
Performing
Additional Welding
Attaching Doors
and Various Parts
Inspecting
the Car Body

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Forming a Car
Through a Variety of
Stamped Parts

The floor, sides and ceiling are then assembled, and as many as4,000places are welded to form the car.

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The Decisive Factor
in Increasing Strength

Special robots weld more than
500 additional locations to strengthen the body.

Exploring Welding

Toyota uses three major welding methods

Exploring Welding

This method uses electric current to fuse together metal parts.

Spot Welding

This process is used to weld two or more steel plates by applying pressure, and heat from an electric current focused on a particular "spot." Most welding in automobile production utilizes this method.

Spot Welding

This method uses electricity to generate heat to join steel plates.

Arc Welding

This welding process utilizes an electric arc between a metal stick ("electrode") and the base material to melt the metals at the point of contact.
It is used for areas where spot welding is difficult to perform (because it cannot be clamped by electrodes).

Arc Welding

This welding method is for high-speed high-precision joining.

Laser Welding

This is a method of joining steel plates by melting them with a laser.
It has excellent joint strength and is used to join steel plates of different thicknesses and materials.

Laser Welding

Commitment to Craftsmanship
The Evolution of Welding

Advancing Laser Technology to
Further Increase Vehicle Strength

Laser welding allows for the joining of more areas at higher speeds.

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Commitment to Craftsmanship　The Evolution of Welding

Advancing Laser Technology to
Further Increase Vehicle Strength

Laser welding allows for the joining of more areas at higher speeds. We have taken advantage of this feature to bring forward even more advanced welding technology. Let us introduce a few key points.

Beautiful Styling
is Born
from Precision

The doors, hood, and trunk lid, among additional parts are attached to the assembled body.

Let’s Explore

What is done to the car to help with precision?

Exploring Welding

Doors are

Intentionally

Displaced

When the window glass and other components are attached to the doors in subsequent assembly process, the additional weight lowers the doors back into alignment.

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Point of WELDING

Doors are

Intentionally

Displaced

When the window glass and other components are attached to the doors in subsequent assembly process, the additional weight lowers the doors back into alignment.

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Not Passing
On Any Defects

If scratches are found after painting, it is difficult to determine whether the cause was the welding process or the painting process, and because of this no immediate countermeasures can be taken.That is why we actively inspect each process. In this way, Toyota places importance on "building quality into each process," which is called Jikotei-kanketsu (self-completion).

03
PAINTING