If you are intersted in having a cracked aluminum frame repaired, then read on.
1) Dissassemble and clean the entire frame with a good cleaning solution like micro 90 or simple green. Once all grease and grime is gone, dry it thouroughly.
2)DO NOT USE ANY FORM OF GRINDING OR MEDIA BLASTING!!!
Strip the paint off all the way around the cracked area so that there is about 3 inches from any portion of crack to any paint. Chemically remove the paint. Chemical/liquid form of paint remover is key! Once the area is clean of any paint, wash with soap and water to remove the stripper.
3)Drill the ends of the crack out with about an .125" or 3mm drill. Debur the drilled holes using a small chamfer tool or a countersink.DO NOT USE A FILE OR SANDPAPER!!!
4)Take to your local electro plating shop and have them Ultra High Vacuum clean the frame and wrap it in foil. When you return to the platers to pick up the frame, be sure to bring hospital type clean room gloves with you. When you get the frame back, and before you leave the plating shop, PUT ON THE CLEAN SURGICAL TYPE RUBBER GLOVES and inspect the crack and around the crack up to the paint and verify it is clean.
5)Take the frame to a Ultra high vacuum experienced tig welder and request them to weld the frame for you. Make it known the cleaning procedure you have had done to the frame. An EXPERIENCED ultra high vacuum tig welder should be more than happy to weld.
1) Dissassemble and clean the entire frame with a good cleaning solution like micro 90 or simple green. Once all grease and grime is gone, dry it thouroughly.
2)DO NOT USE ANY FORM OF GRINDING OR MEDIA BLASTING!!!
Strip the paint off all the way around the cracked area so that there is about 3 inches from any portion of crack to any paint. Chemically remove the paint. Chemical/liquid form of paint remover is key! Once the area is clean of any paint, wash with soap and water to remove the stripper.
3)Drill the ends of the crack out with about an .125" or 3mm drill. Debur the drilled holes using a small chamfer tool or a countersink.DO NOT USE A FILE OR SANDPAPER!!!
4)Take to your local electro plating shop and have them Ultra High Vacuum clean the frame and wrap it in foil. When you return to the platers to pick up the frame, be sure to bring hospital type clean room gloves with you. When you get the frame back, and before you leave the plating shop, PUT ON THE CLEAN SURGICAL TYPE RUBBER GLOVES and inspect the crack and around the crack up to the paint and verify it is clean.
5)Take the frame to a Ultra high vacuum experienced tig welder and request them to weld the frame for you. Make it known the cleaning procedure you have had done to the frame. An EXPERIENCED ultra high vacuum tig welder should be more than happy to weld.