B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
149/10
B08B 3/10 (2006.01) B08B 3/08 (2006.01) B41C 3/00 (2006.01) B44C 1/22 (2006.01) C03C 15/00 (2006.01) C23F 1/00 (2006.01) C23G 1/00 (2006.01)
Patent
CA 1180258
METHOD FOR SHAPING AND FINISHING A WORKPIECE ABSTRACT OF THE DISCLOSURE The invention includes the process of shaping a workpiece and for producing a surface contour complementary to the surface contour of a model The process comprises the steps of applying a masking material to at least a portion of the surface of the workpiece to be shaped, the masking material being adapted to protect the surface from the effects of etchant. A template is then pressed against the surface, the template having a surface contour comprising a negative image of the surface contour to be formed in the workpiece, the template surface being comprised of material adapted to remove the masking material when the template is pressed against the surface and removed from the surface. The template is then withdrawn from the surface to remove masking material from those portions of the surface contacted by the template surface. Etchant is then applied to the surface not covered by the masking material. The steps of pressing the template against the surface to remove masking material and etching the surface of the workpiece are repeated until the surface contour of the workpiece conforms to the surface contour of the model.
400524
Lovejoy Industries Inc.
Meredith & Finlayson
LandOfFree
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