Sidecar Keith
Member
- Messages
- 14
I got myself a mig as when gas brazing my practice pieces (2mm thick) I found they were warping.
Having welded up a few practice pieces I turned my attention to my £230 worth of lazer cut bits for a 1m long chassis for a ride along behind size model diesel loco.
The chassis uses 2mm thick mild steel cut into shape and tapped together using slots and tabs.
All looked well after I tacked it up, but having welded all the seams up the whole chassis went bannana shaped.
Not amused. A month on the CAD and £230 down the drain.
Obviously I need a bit of a redsighn here with thicker metal and maybee some angle instead of fancy lazer cut bits, but how could I lesson the risk of this happening again when I am welding.
Would I be better off welding up say an inch at a time and walking off untill it has cooled before doing another bit, instead of welding up the whole thing at once?
Ta,
Keith
Having welded up a few practice pieces I turned my attention to my £230 worth of lazer cut bits for a 1m long chassis for a ride along behind size model diesel loco.
The chassis uses 2mm thick mild steel cut into shape and tapped together using slots and tabs.
All looked well after I tacked it up, but having welded all the seams up the whole chassis went bannana shaped.
Not amused. A month on the CAD and £230 down the drain.
Obviously I need a bit of a redsighn here with thicker metal and maybee some angle instead of fancy lazer cut bits, but how could I lesson the risk of this happening again when I am welding.
Would I be better off welding up say an inch at a time and walking off untill it has cooled before doing another bit, instead of welding up the whole thing at once?
Ta,
Keith
