Internal abrading tool and method of making

Details Internal abrading tool and method of making Internal abrading tool and method of making

1991-09-03

1994-06-21

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51334, 15206, 152072, B24D 900

Patent

active

053219198

ABSTRACT:
A twisted stem internal abrading tool having molded axially curved swept back filaments is formed from a twisted stem internal finishing tool having strips of abrasive containing plastic arrayed in a radial pattern about a twisted tool stem. The filament end of the tool is inserted into an undersized mold cavity thereby forcing the filaments into an axially curved swept back configuration. With the filament end of the tool fully inserted into the mold, the mold is heated and quenched to permanently fix the filaments in an axially curved bent back configuration producing an abrading tool in which the lengths of the abrasive filaments are positioned for contact with internal surfaces, maximizing the amount of abrasive material put in contact with the work surfaces and increasing the abrading efficiency of the tool.

REFERENCES:
patent: 2049324 (1936-07-01), Schneider
patent: 2826776 (1958-03-01), Peterson
patent: 4646479 (1987-03-01), Walker et al.
patent: 4882879 (1989-11-01), Warner et al.

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