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Fillet Welds That Are “Too Long”

Escrito por Leandro Peres Ferreira. Posted in Processos de Soldagem

Practical Ideas for the Design Professional by Duane K. Miller, Sc.D., P.E.

When fillet welds exceed a certain leg size to length ratio, and when such welds are “end loaded,” they can become “too long.” That is, the added length may not add strength that is proportional to the increase in length. This situation rarely occurs, as will be seen, but the designer should be aware of when it occurs, why the capacity is diminished, and how to mitigate the effects.

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Consider Penetration When Determining Fillet Weld Size

Escrito por Leandro Peres Ferreira. Posted in Processos de Soldagem

Practical Ideas for the Design Professional by Duane K. Miller, Sc.D., P.E.

Introduction A flat-faced, equal-legged fillet weld in a 90° T-joint has a theoretical throat dimension of 0.707 ω, where ω is the leg size (Figure 1). This assumes fusion is achieved to the root of the joint, but not necessarily beyond that point.

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Thicker Steel Permits the Use of Opposing Arcs

Escrito por Leandro Peres Ferreira. Posted in Processos de Soldagem

Practical Ideas for the Design Professional by Duane K. Miller, P.E.

An Efficient Technology

A welding system featuring opposing arcs is commonly used to weld stiffeners to webs on bridge members. In concept, opposing arc systems can be used to fabricate any tee joint configuration requiring fillet welds on both sides of the vertical member.

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A century of aluminium— a product of the future

Escrito por Fabio Urzedo Silva. Posted in Processos de Soldagem

by Anders Norlin,  Sapa, Sweden

Aluminium is a young metal with an outstanding history as far as the technical metals are concerned. The first aluminium items made their appearance on the market in or around 1890 and this heralded the start of a unique market trend which has made aluminium the second most frequently used metal after steel.