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Title:
METHODS OF SELECTION A DIRECTION OF FORMATION OF SLAG PUDDLE, OF CONTROLLING CUTTING PATHS OF A THERMAL PROCESSING TORCH, AND OF PIERCING A WORKPIECE WITH A THERMAL PROCESSING TORCH
Document Type and Number:
WIPO Patent Application WO/2022/046762
Kind Code:
A3
Abstract:
A computerized method (100) is provided for selecting a direction of formation of a slag puddle on a workpiece during processing of the workpiece by a thermal processing torch. The method comprises causing (102) the torch to emit a thermal arc to gouge the workpiece at a first location without piercing through the workpiece. The method further includes translating (104) the torch from the first location to a second location along a first direction on the workpiece while the torch is gouging the workpiece, the first direction substantially along the selected direction of slag puddle formation. The gouging and translating cause formation of a trench in a surface of the workpiece in the first direction. The method furthermore includes causing (106) the thermal arc emitted by the torch to pierce through the workpiece at the second location, which causes the formation of the slag puddle along the selected direction as guided by the trench.

Inventors:
CHEN LIMING (US)
LIEBOLD STEPHEN M (US)
DAVIS AUSTIN (US)
BERTKEN STEVEN (US)
DARR RENE (US)
ANDERSON JAMES (US)
Application Number:
PCT/US2021/047339
Publication Date:
July 21, 2022
Filing Date:
August 24, 2021
Export Citation:
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Assignee:
HYPERTHERM INC (US)
International Classes:
B23K9/013; B23K9/095; B23K10/00; B23K26/364; B23K26/38; B23K26/382; B23K26/40; B23K101/18
Foreign References:
US2510210A1950-06-06
JPS5533826A1980-03-10
Other References:
O. RICHARD ET AL: "RIMBAUDD SOFTWARE FOR AUTOMATIC PART POSITIONING AND CUTTING OPTIMIZATION", ALSTHOM REVIEW, ALSTHOM, PARIS, FR, no. 7, 1 January 1987 (1987-01-01), pages 63 - 70, XP000112000
Attorney, Agent or Firm:
RASMUSSEN, Xin Hu et al. (US)
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