Patent ID: 6406355
Filing Date: 2002-06-18
Classification: B23P,B24B,B29C,C23C

Abstract:
A method for preparing a surface of a workpiece in the form of a sheet of a solid ductile first material to provide a transition zone between said first material and a second material to be brought into intimate contact with said first material, comprising:moving said first material relative to a moving belt or drum to the surface of which are bonded abrasive particles much harder than said first material through a contact zone while pressing said particles of abrasive into said ductile material surface, such that the abrasive particles score recesses extending longitudinally of said first material surface while displacing said ductile material from the scores to form processes integral with said material and extending outwardly from said surface and parallel to said scored recesses into spaces between the first material surface and the surface of said moving belt or drum, the distribution of the abrasive particles on the belt or drum being sufficiently sparse, and the contact duration and pressure between the belt or drum and the sheet being sufficiently restricted that a substantial proportion of the processes remain attached to the sheet, said recesses and process together providing the prepared surface with a transition zone between said ductile material and said second material.