Electric arc welding by Lincoln electric co. Cleveland

Author:Lincoln electric co., Cleveland. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Electric welding
Publisher: Cleveland, Ohio, The Lincoln electric co.
Published: 1921-03-25T05:00:00+00:00

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lig. S/". I-uilmIii -\ic WtUfii lu U3C m large Drop Forging plant.

ELECTRIC ARC WELDING

Commercial or Job Weldin:

aclvct willi cl.ctric aic

I'.Ncry cit\ III an\ si/t lia^ a iuiiiiIkt of snuil sliii]is where wcldiiii; nl all ^nrts is ilmic.

time acel\lene weliliiii; was the ill u^e in tlie^e sluipv. Tlu-v were

I'lir a I'lii ehief prneess

started, iiuistly, liy men wlin liad dune aeet\ leiie weldins,' in varimi^ maiuifaetnriiiL; [ilants until they had hecinne \er\ expert in it^ aiiplieatiuii to all flirts 111' wiirk.

< hi startiiifi Imsiiu-ss for thenisehes. tliev naturally adopted the process with which the\- wn-rc familiar. They were prompted imt only In- tlii-. hut by the fact that it required only a verv small capital to Iniy the necessary equipment for acet\-lene welding.

1 hese early shops have grown in niimher and have increased in size reiiiarkabh in the past ten years. The larger ones have now come to the ]«iint where there is a continuous stream of work passing through their jilants and they have been obliged to look ver_\- carefully into methods of reducing production cost. Competition has grown keen in pro]:iortion to the success which the early shops made of their business.

< )\ving to tliis condition, many of the sho])s have carefully investigated and have been jait-ling in arc welding apparatus to take care of a great deal of their work. An investig.ition has shown that from 30 to 60 per cent of the work wliich is welded by oxy-acetylene can be done e(|ually well with the arc process, and what is more important, it can be done usually for less than half the cost of acetvlene work.

There are undoubtedly cases in which oxy-acetvlene must be used in preference to the arc, such as the case of welding automobile cylinders, but this class of jobs forms onlv a small percent-;ige of the work done by a large commercial plant. Many such plants employ ten to fifteen operators and in a plant of this size, there is alw.ays work enough to keep two or three arc welding o|)erators busy using the arc.

CoDiptirative Costs

The tables given lhi iiage 0 are authentic, and will give the commercial welder a basis on which he can compare his present costs with thuse oi ;irc welding.

The importance of doing this wiirk at the lowest possible cost need not be emphasized tor every welder knows that every cent he saves on any gi\en welding job goes into his pocket as that much extra |irofit or in other cases it enables him to bid lower on desirable work and secure it at ;i goocl profit against competition from smaller shops who are tiguring work for acetylene welding.

The be--t |iossil)le liasis for comparison is the actual installation of an arc welding outfit in the commercial shoj) and a thorough trial covering a period nf two or three months' time. This sort of a trial can be arranged at a slight expense and has jiroven a means of cost cutting to commercial welding shops in Detroit, Pittsburgh, I'rovidence, 1\, 1., Cleveland, and other places where it h.

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