Welding Notes; Spot Welding Notes - Mazda MX-5 2007 Bodyshop Manual

Welding Notes

• For the number of weld points, welding should be
performed in accordance with the following
reference standards.

Spot Welding Notes

• The shape of the spot welder tip is D=(2×t)+3. If
the upper panel thickness is different from that of
the under panel, adjust to the thinner one.
• Because the weld strength is affected by the
shape of the spot welder tip, the optimum
condition of the tip should always be maintained.
• Spot welds should be made at points other than
the originally welded points.
• Before spot welding, make a trial weld using the
same material as the body panel to check the
weld strength.
GENERAL INFORMATION
Spot welding
Original weld
CO 2 arc welding
Original spot weld
Repair weld
Original number of
welds x 1.3 or more
If 3mm
Repair weld
{0.12in} or more
Original number of welds
or more
70 - 120°
D
t
Test piece method
Nugget diameter
:4/5 of tip
00-00–13
00-00
DPE2038B005
MZZ2038B009
MZJ2038B012
MZZ2038B006