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#1
29-11-12, 10:09
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Hey guy's! Darrin, quite simply, prepare, as in grind clean, V out about least half the thickness you're welding to both pieces and leave a little gap for penetration, High amps on your welder, set gas to 18-20. Solid wire welding with mig is already low hydrogen. If you're going to war then preheat if you're not "don't bother" inert mig gas prevents hydrogen from affecting your welds. watch your welding while you're doing it, you can see if it's flowing or sitting on top. if it's not a flowing a flatish weld then you need more heat or you're dragging instead of pushing. If you welder is on high amps it will put plenty of heat into the material anyway. Don't try and weld an oxy cut that still has slagg on it as it won't work.
"My 2 bobs worth"" Colin. 
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#2
29-11-12, 14:22
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great thread fella's and thanks to all those that have given advice, i'll be needing it soon
 cheers rick
__________________
_______________________ 1941 mk1 mortar Carrier 1941 Mk1* Carrier 1942 Mk1* Carrier 1943 T16 Carrier 1945 Mk3 Dingo 1941 Mk3 Covenanter 1941 Mk4 Churchill AVRE (now sold) 1944 Mk6 Cromwell (now sold) 1952 Mk3 Centurion 1952 ARV Centurion 1952 ARV Centurion 1953 Mk3 Centurion (breaking) Last edited by eddy8men; 29-11-12 at 20:16.
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#3
29-11-12, 15:19
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It looks like you have your work "cut out" for you!
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2
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#4
29-11-12, 20:18
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very true
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_______________________ 1941 mk1 mortar Carrier 1941 Mk1* Carrier 1942 Mk1* Carrier 1943 T16 Carrier 1945 Mk3 Dingo 1941 Mk3 Covenanter 1941 Mk4 Churchill AVRE (now sold) 1944 Mk6 Cromwell (now sold) 1952 Mk3 Centurion 1952 ARV Centurion 1952 ARV Centurion 1953 Mk3 Centurion (breaking)
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#5
29-11-12, 21:43
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Joe, Colin etc.
Thanks for your very useful posts. For those of us not so skilled, it is great to be able to pull up this thread in the future, as a reference.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions....
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#6
29-11-12, 22:38
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thanls
thanks guys for all your input.
I am picking up a heavy duty mig today from a friend and will look at preparing the steel this weekend and commence welding next week. I think (and this thread has confirmed) preparation is a very important factor, so will grind a vee on both sections of the hull & panel, and ensure any slag is removed. Weld in some braces to support the new panel, some minor tacks to get it in the right spot, adjust with a hammer, then weld away alternating from side to side so that heat expansion does not affect the new panel. When finished grind and tidy up the welds, then run over it with a flapper sanding disc to get the surfaces right. When the hull is blasted get them to concentrate on the welded area to get the surface texture the same. Thanks again
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1943 Ford GPW Jeep "Follow Me" 1943 MBT trailer 1943 Dodge WC-57 Command Car 1943 Chev C60L Army Cargo Truck 1941 LP2 VR 731 Bren Gun Carrier 3" Mortar Carrying Under restoration: 1940 LP1 Bren Gun Carrier 194? 1 Ton Trl Ben Hur 1942 C15A with sunshine cabin MVPA 31338
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#7
30-11-12, 13:02
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tip
G'day Darrin,
One more tip for you mate make sure you have tin of nozzle dip!!! this dip will help keep the head of the mig welder clean when welding. cheers for now and good luck
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