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nigtr6

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Posts posted by nigtr6

  1. Hi RogerH,

    I used to be involved in Aluminium welder and I do recall the material was pre-heated prior to striking the arc.

    The temperature was attained using a soft/ fluvy flame, the edges of the weld would have soap, yes, a bar of white soap was rubbed along the weld when the soap went light brown it had achieved its pre-heat temperature. Much easier than temple sticks and crayons etc.

    Hope it may help?

    Regards

    Nigel

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