An essential item for any bodyshop using MIG Brazing
job can be made easier if you have correct equipment. The reduced
number of hours given by the insurance companies can be overcome
by increasing productivity.
Hole Punch will certainly save you time and
..save you money
With the new
MIG Brazing standard due to be published shortly the importance
of making an oblong hole for plug welding instead of a single hole
will be emphasised..
two ways to make the correct hole: The slow and expensive way or
the fast and professional way.
and expensive way
The slow way is to drill three holes next to each other and
then lean up the burred edge between them Three holes every thirty
· 2 oblong slots per minute costs 25pence each. It
doesn't sound much but 120 slots is £30, maybe one hour you
have got from the insurance company.
and professional way.
Use the Oblong hole punch. This is eight times quicker than
the slow way and it looks the business. 960 slots per hour.
· The Oblong hole punch will save you time and increase
· The oblong hole punch is now available for every
Why do you
need an oblong hole?
When MIG Brazing
the new High Strength Steel, it is important to have the correct
equipment, wire, gas and technique.
MIG steel wire
is used where the temperature at the tip is 1500 degrees. At this
temperature the welding process melts the panels together whilst
the wire is used as a filler. With MIG Brazing the temperature is
only around 900 degrees and the metal does not melt. The brazing
wire flows between the panel and acts a bit like a glue.
when plug welding with MIG steel wire, a small 6mm hole is easy
to fill correctly. Enough heat gets to both panels (the metal melts)
and the result is perfect.
When MIG Brazing
a plug weld it is vital to fill up an oblong hole rather than a
small hole. The reason for this is that there is not enough heat
transferred through the .6mm hole into the bottom panel. The MIG
brazing wire has to flow into the hole and also between the panels.
Without the heat on the bottom panel the result will not be good.
1 Clean the
surface of the panel you wish to weld and also the surface of the
inner panel. MIG brazing does not work if the is paint on the surfaces.
2 Fit the hole punch onto the upper panel and clamp both handles
together. The result will be a perfect oblong hole.
This hole punch
is ideal for panels up to .8mm thick. It may be possible to work
on 1mm panels but it will be very tough.
hole punch, the only way to prepare a panel for MIG Brazing is to
drill a series of three little holes together making an oblong hole.
This is time consuming and expensive.
the Oblong Hole Punch is the correct tool for the job and will increase
productivity and save you money.
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