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1, It is tension stress at weld bead.

2, The concept of "weld bead heat affected zone"(WBHAZ) was proposed.

3, A cavity is made on both sides of weld bead.

4, The regularity of the weld bead displacement is deduced by analysing the stress cup stamping.

5, Thiscondition can occur in any weld bead depression, but it is more likely to occur in the end of abead, especially a tack weld .

6, As-welded tube will have the residual weld bead of metal protruding into the ID of the tubing.

7, But the microhardness of the weld bead after heat treatment reduces by 60 HV, compared with origin welded joint.

8, The experiments show that adaptive system is excellent in controlling weld bead for aluminium alloy TIG welding.

9, It is shown that it is improper to calculate the stress round the weld bead with the value of a for the mother material.

10, The dual-torches all-position automatic welding machine could obviously improve the weld bead deposition rate and the welding speed, and promote the single set of equipment ability greatly.

11, Aiming at the different penetration modes of pulsed GTAW with wire filler, the problems of controlling the topside and backside weld bead shape are proposed.

12, Localized heating from the welding process and subsequent rapid cooling induces welding shrinkage stresses along weld bead during welding thin-wall plate and causes structural buckling distortions.

13, A method in which a data base and regression will be employed has been studied for predicting weld bead shape and selecting optimum welding parameters in arc welding processes.

14, Using the heat of welding to vapour water, cooling rates are lowered on the weld bead and heat -affected zone.

15, Abstract: A cavity is made on both sides of weld bead.

16, In GMAW welding process, when the welding speed reaches a certain threshold, there will be onset of weld bead undercut defects.

17, Hot cracking in aluminum alloys is primarily due to the chemistry of the alloy and the weld bead.

18, Moreover,[http://sentencedict.com/weld bead.html] the welding speed effects on the fish-scale spacing and the defocus distance on the weld bead penetration and weld width mainly.

19, In this paper, the study of low cycle fatigue behavior of BHW-35 Steel material and weld bead using in fabrication of power plant boiler was introduced, a few of important conclusion was suggested.

20, The foundation of the future research of weld pool image processing and weld bead control was established.

21, As an example pinpoint control, Five Star once received a micro-weld sample from a competitor that had a weld bead on top of the head of an ordinary shirt pin.