It's .223 so I doubt there will be much stress vs. a .30 cal. Should be fine
HMMM WELL I DONT HAVE THE BOLT THRUST NUMBERS BUT A 223 RUNS AT HIGHER PRESSURE THAN A 7.62
Others have welded the rivet heads (I think that's what you mean?) with no issues,
IF I WERE GOING TO DO A SCREW BUILD I WOULD WELD THE RECIVER TO THE RIVET PIECES LEFT IN THE RECIVER AN TRY NO TO HEAT UP THE TRUNION. YOU WOULD NOT BE WELDING THE RECIVER YOU WOULD BE TECHNIALY WELDING THE RIVET SHANK TO THE RECIVER.
...it may even be stronger than rivots if welded correctly...
PLEASE EXPALIN HOW DOING MULTIPL WELDS IN MULTUTIPUL PLACES IS GOING TO MAKE A HARDENED TRUNION STRONGER?? ITS NOT THE CONNECTION TO THE RECIVER THATS GOING TO GET YOU HURT ITS THE TRUNION FAILING THAT WILL GET YOU HURT . THERE IS ABOUT 9000 psi IF THRUST TRYING TO SEND THAT BOLT BACK AT YOU. BEFORE DECIDING ON A WELD BUILD RELIAZE THE FORCE THAT SENDS THAT BULLET UP TO 3500 FPS ( 223) IS ALSO TRYING TO FORCE THE BOLT BACK WITH THE SAME FORCE. YOU HAD BETTER BE CONFIDENT IN YOUR WELDING SKILLS. I HAVE SEEN A FEW GUNS POSTED HERE ANB ELSE WERE THAT LOOKED LIKE A CHICKEN SHIT THE PARTS TOGETHER AN TO MAKE IT WORSE GUYS WELDED ALL OVER THE TRUNION THINKING THEY WERE MAKING IT STRONGER. IF IT FAILS IT WILL NOT BE PRETTY.
WERE THE RIVET HOLES ARE, IS LOCATED DIRECTLY IN BETWEEN THE BARREL AN THE THE LUGS. IN ADDITION THE AREA ON A STANDARD AKM IS VERY THIN. IMO A BAD PLACE TO WELD. THE AREA AROUND THE BARREL PIN IS THIN AS WELL AN A STANDARD AKM AN THE PIN SEES ABOUT THE SAME FORCE ON IT AS THE LUGS. THE OPS GUN IS A BULGED TRUNION AN IF YOU HAD TO WELD ONE THAT WOULD BE THE ONE TO WELD BUT YOUR STILL AFFECTING THE METAL YOUR WELDING TO.
THE CONECTION TO THE RECIVER IS THE LEAST OF THINGS TO WORRY ABOUT . THERER IS ONLY ABOUT 5 POUNDS OF THRUST ON THE RVIETS, SCREWS OR WELDS. IF A WELD FAILS AND THE RECIVER COMES LOOSE ITS NOT LIKELY GOING TO HURT YOU. IF A TRUNION BREAKS YOU MIGHT BE KILLED.
ID LOVE TO TRY A BUILD WITH SOME OF THAT HIGH TEC SPACE AGE ADHESIVE THEY USE. CAR MAKERS USE IT AN PEOPLE SAY THE METAL WILL TEAR BEFORE THE BOND.
IF YOU WANT A SMOOTH LOOK A FLUSH AIR CRAFT STYLE RIVET MIGHT BE DOABLE IF THE TRUNION HOLES AN THE RECIVER WERE DEMPLED AN COUNTER SUNK TO CORISPOND. i CONSIDERED SUCH A BUILD ON A M70 WITH A THICK RECIVER AT ONE POINT. I HAVE NEVER TRIED IT . PARTS ARE TO EXPENSIVE THESE DAYS TO SCREW THEM UP.
THERE ARE SEVERAL OTHER THREADS WERE I GIVE MEASUREMENTS OF TRUNION THICKNESS WERE PEOPLE HAVE WELDED. A IMPROPER WELD ON HARDEND STEEL CAN BE JUST LIKE A ROCK CHIP IN A PIECE OF GLASS IT MAY NEVER BREAK OR IT MIGHT UNEXPECTEDLY SHATTER. IMO WEDEING ON A AREA IN BETWEEN THE BARREL PIN AN THE BOLT LUGS IS ABAD IDEA AN ILL STICK BY THAT OPINION.
BOTTOM LINE IS THERE IS NO WAY A WELD IS GOING TO BE DONE ON A HARDENED STEEL PART AN THE METAL WERE THE METAL WAS TURNED INTO A MOLTON POOL IS NOT TO AFFECTED, AS IS THE METAL AJECENT TO IT. IT DOSENT MATTER HOW SMALL IT IS. THE AMOUNT OF AFFECT IT HAS AN IF ITS SAFE IS WHATS UP TO SPECULATION. THERE HAVE BEEN FAILURES OF WELD BUILDS . I CANT SHOW A TRUNION FAILURE HOWEVER.
I HAVE WELDED A LOT OF REAR TRUNIONS TO MAKE PISTOL TRUNIONS AN i HAVE SEEN PERFECT LOOKING SMALL WELDS LITTRALY FALL OF ON THE BENCH DUE TO LACK OF PENITRATION AN LIKELY LACK OF PREHEAT. ITS CAN BE TRICKY WELDING HARDENED STEEL WITH OUT GETTING ANY HEAT INTO THE PART. i BNOW PREHEAT REAR TRUNIONS WHEN IM WELDING ON THEM. IT IS ALSO WORTH POINTING OUT THAT A LOT OF WELD BUILD FAILURES ARE FROM THE REAR TRUNION SEPERATING FROM THE RECIVER AN THE PARTS COMING BACK AT THE SHOOTERS FACE. THERE USED TO BE MANUFACTURES WHO SOLD WELD BUILDS AN THEY HAD FAILURES.
ITS HIS GUN AN HIS FACE HIS DECISION. I HAVE BEEN DOWN THIS ROAD OF DISCUSSION BEFORE ILL STICK TO MINE.
NOW WHAT WPOULD BE A GOOD DISCUSSION IS IF OBAMA GETS ELECTED AN YOU NEED TO GET 10 GUNS ASSEMBELD FROM KITS INA DAY OR SO WHATS THE BEAT WAY TO SLAP THEM TOGETER TO GRAND FATHER THEM IN IF NEEDED?????????
I HAVE DECIDED IF I WERE IN THAT SITUATION I WOULD TIG THE RIVET SHANS TOT HE RECIVER WITH A SPOT WELD OR EVEN POSSABLY GLUE THEM TOGETHER. YOU CAN ALWAYS GO BACK AN FIX THEM. IM MORE THAN A LITTLE SCARED THAT MY MILLED KITS WILL NOIT GET DONE AS I WAN TO DO REPAIR PLATES. THERE IS NO FAST WAY TO MAKE IT A GUN IN A HURRY. ASDIE FROM MAYBE WELDING SHEET METAL TO THE SIDES OF THE STUBS AN DRILLING THE HOLES.