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Ford Focus Service Manual: Welding Precautions - Steel - Description and Operation

Ford Focus Service Manual / Body / General Information / Welding Precautions - Steel - Description and Operation

Material


Item Specification
Motorcraft Premium Undercoating PM-25-A (or equivalent)
Motorcraft Rust Inhibitor Aerosol PM-24-A (or equivalent)





General Equipment
3 Phase Inverter Spot Welder 254-00002
Compuspot 700F Welder 190-50080
I4 Inverter Spot Welder 254-00014
Inverter Welder with MIG Welder 254-00015




  Weld Nugget Chart


Test Thickness of Metal (mm) Nugget Size
0.7 + 0.7 4.3 mm (0.16 in)
0.7 + 0.7 + 0.7 4.3 mm (0.16 in)
0.9 + 0.9 4.7 mm (0.18 in)
0.9 + 0.9 + 0.9 4.7 mm (0.18 in)
1.0 + 1.0 5.2 mm (0.2 in)
1.0 + 1.0 + 1.0 5.2 mm (0.2 in)
2.0 + 2.0 7.1 mm (0.27 in)
2.0 + 2.0 + 2.0 7.1 mm (0.27 in)
3.0 + 3.0 8.7 mm (0.34 in)
3.0 + 3.0 + 3.0 8.7 mm (0.34 in)
3.0 + 0.7 4.3 mm (0.16 in)
0.7 + 3.0 + 1.0 5.2 mm (0.2 in)
2.0 + 2.0 + 0.7 4.3 mm (0.16 in)
0.9 + 0.9 + 2.0 4.7 mm (0.18 in)
2.0 + 0.9 + 1.0 5.2 mm (0.2 in)
1.0 + 3.0 + 1.0 5.2 mm (0.2 in)
3.0 + 1.0 + 2.0 7.1 mm (0.27 in)
0.9 + 0.7 + 0.9 4.3 mm (0.16 in)
 

  General Specifications


Item Specification
Plug weld hole 8 mm (0.31 in)
Weld wire ER70S-3 or equivalent 0.9-1.1 mm

(0.035-0.045 in)

WARNING: Invisible
ultraviolet and infrared rays emitted in welding can injure unprotected eyes and skin. Always use protection such as a welder's helmet with dark-colored filter lenses of the correct density. Electric welding will produce intense radiation, therefore, filter plate lenses of the deepest shade providing adequate visibility are recommended. It is strongly recommended that persons working in the weld area wear flash safety goggles. Also wear protective clothing. Failure to follow these instructions may result in serious personal injury.

The correct equipment and settings must be used when welding mild or high-strength steel. Metal Inert Gas (MIG) and Squeeze-Type Resistance Spot Welding (STRW) are the preferred methods. Surfaces must be clean and free of foreign materials.

Weld-Bonding - General Procedures
General Equipment 3 Phase Inverter Spot Welder 254-00002 Compuspot 700F Welder 190-50080 I4 Inverter Spot Welder 254-00014 Inverter Welder with MIG Welder 254- ...

Body Electrical
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