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Hi fellas,I have a Makita belt sander that the students have managed to drop and fracture the casings. I am trying to identify the suitable filler to weld this cast alloy sucessfully. I have tried using 4043 but is it not fusing the casting. I am trying to work out if the cast alloy parent metal is zinc based or magnesium based. Is there a simple low tech way to ID the metal. I remember someone saying arc on the metal and observing the colour grren or yellow but not much else.The casting averages 3 to4 mm deep- say 1/8" to 3/16". The granular nature of the broken edge is really apparent. I am using pure argon on a 2.4mm Zirconiated tunsgten on AC hf.The Machine is a 240 volt Kemppi Mastertig.Is they any useful advice that anyone could offer. Its not a real big problem.Thet repairers can get new castings, but I though if I can save the school and get some parctice in this ( new to me ) material, we are both winners.ThanksI hope you mobHave a great ChristmasGrahame
Reply:I would try Wonder rod and a propane torch.DennisThermal Arc 185-TSWMillermatic Challenger 172VictorO/AAtlas Craftsman 12 by 24 LatheEsab PCM-875Wholesalem Tool Mill-Drill
Reply:wonder rod/aladin 3in1 rod.. it works in its place as a solder.(can repair a hole in a alum can) have used on some pot metal things
Reply:JB WELD from an auto supply store works pretty good and sticks to almost anything. Its a filled epoxy and is very strong.
Reply:My vote is for the wonder rod. HTS 2000 is another that works well on pot metals.Dan.Repair Specialties LLC |
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发表于 2021-9-1 00:13:02