Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent
1986-10-28
1988-06-28
Desmond, Eugene F.
Metal working
Plural diverse manufacturing apparatus including means for...
Binding or covering and cutting
29 33T, 409140, B23P 1544, B23P 2304
Patent
active
047529946
ABSTRACT:
A scarfing apparatus for removing a weld bead from a tube being produced by a continuous method wherein the tube enters one end of a rotatable hollow spindle which supports a tool bit. The tool bit has an arcuate shape having a segment which extends 180.degree. or less about the periphery of the tube. The spindle oscillates rotationally causing the tool bit to rock back and forth across the surface of the moving tube to remove the weld bead. The tool bit is formed of carbide steel containing tantalum, titanium and cobalt. The tool bit has a forward face portion and a bottom face portion which define a tooling edge at their intersection. The bottom face portion slopes upwardly at an angle of approximately 3.degree. to reduce friction on the tube. For use with carbon steel tubing, a bit is used having a forward face portion angled approximately 15.degree. from the vertical. For use with stainless steel or aluminized material, a bit is used having a forward face portion angled back approximately 21.degree. from the vertical. The forward face portion is smoothed to no rougher than approximately 12-16 microinches to enhance chip flow. The bottom face portion is smoothed to no rougher than approximately 24-30 microinches or smoother to provide a tooling edge without irregularities. A tool holder supporting the tool bit is secured to the spindle by securement bolts and has a locating aperture therein which receives a locating member mounted on the spindle to ensure correct alignment of the tool holder relative to the spindle during assembly.
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Brunken Walter R.
Dempsey William J.
Addison Machine Engineering Inc.
Desmond Eugene F.
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