PRODUCT
3. Production - Assembly
a.) Flange
Production
The flange is formed and made of die and punch press. The first production flange is examined by comparing with the original sample.
Spot Welding
In order to have the flange and fuel tank aligned properly, the flange jig is required.
The spot welding amperage needs to be adjusted according to the mechanical property of the material. The adjustment includes current, duration, testing tool, and testing method.
The testing tool and method ensures the flange is attached on the fuel tank properly.
b.) Pan
Production
The pan is formed and made of die and punch press. Each pan is checked to make sure the dimension is correct.
Spot Welding
Alignment spot welding ensures the pan is in the correct position inside the fuel tank. It is examined by using the original sending unit. This process ensures the pan inside the tank will not interfere the sending unit.
Again, the spot welding amperage needs to be adjusted according to the mechanical property of the material. The adjustment includes current, duration, testing tool, and testing method.
c.) Fuel Tank Body
Pre Assembly - Spot Welding
This process puts the upper and lower fuel tank together. A 2-pin jig is used to make sure the two pieces are aligned correctly.
Again, the first production part is examined by comparing with the original sample.
Main Assembly – Wheel Welding
This process seals the upper and lower fuel tank. Similar to spot welding, the amperage needs to be adjusted.
The first assembled fuel tank is sent for leaking test. This ensures the fuel tank is airtight. If the subject fails the test, the production is put on hold until the cause of leaking is found and solved.
