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  • Michelsen Ayala posted an update 8 months, 2 weeks ago

    Do you know the best methods for welding stainless? That’s like asking whats the easiest method to go fishing? It depends on a many solutions, don’t you think? Lots of things like which kind of stainless, what thickness, whats the application, as well as what industry?

    1. Food Service. Most metal in the food service market is 300 series stainless. Type 304 .063" thick stainless sheet metal being exact. In the event you head to any Take out counter and check out every one of the counters, shelving, cookers and such, you will observe it’s all regulated created from welded stainless-steel sheet metal. Food service codes require 304 stainless to get used in preparing food areas because it doesn’t rust easily. All welds should be performed in such a way never to trap bacteria and also other crud. Back sides of stainless welds must be shielded with argon so they are certainly not sugared and filled with pits which could trap bacteria like salmonella. All wire brushing should be carried out which has a stainless steel brush and welds which are not perfectly smooth needs to be blended smooth by incorporating form of abrasive wheel and after that cleaned with alcohol.

    Tig welding is nearly always the top process since spatter and slag are absent. Tig welding rods ought to be 308L for welding 304 stainless. L is good for low carbon because

    Carbon isn’t good in relation to corrosion resistance in stainless.

    Tips for welding SS sheet metal : 1 amp per 1 thousands of thickness, maintain your hot tip from the filler rod shielded and snip it whether or not this gets oxidized, use chill bars created from aluminum, copper, or bronze whenever feasible. Filler rod should generally stop bigger thickness of metal welded. Keep bead width close to Four times the thickness with the sheet. Work with a gas lens style cup, a #7 or bigger. A 1/16 thoriated or lanthanated electrode will easily weld 16 ga .063" sheet. Keep electrodes neat and sharp.

    2. Aerospace. Stainless steel alloys used in the aerospace and aviation industries are a much more varied. There are lots of them. Austenitic stainless steels like 321, 347, 316, and 304 are normal, but so are martensitic stainless grades like 410 steel , Greek Ascoloy, and Jethete M190. Another class of stainless suited for commercial aircraft is the Precipitation Hardening variety. A PH by the end like 15-5ph, 17-4ph, 15-7ph, 17-7ph points too the steel is precipitation hardening. That means holding it at high temperature for longer time permits the steel to harden. PH grades are now and again much more difficult to weld compared to straight 300 series as a result of alloy elements and complicated metallurgical reactions to heat while welding.

    Tig Welding and automatic plasma welding include the most often utilized processes.

    Tips for Aerospace tig welding SS : Clean, Clean, Clean. Use as big a tig cup and possible 3/4 " –1". Use minimal heat and use any means to prevent distortion (skip welding, fixturing, small beads) shield the rear side of other nutritional foods you weld with argon using tooling, or homemade purge boxes.

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