Impact wrench anvil and method of forming an impact wrench anvil
First Claim
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1. A method for producing an anvil for an impact tool comprising:
- providing an anvil comprising steel having less than 0.15% carbon and about 2 to about 4% Ni; and
subjecting the anvil to a plurality of heating and quenching cycles.
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Abstract
An anvil adapted to be received within an impact wrench comprises a round body and a square head. The square head is formed at an end of the round body. A tapered ramp extends from the round body to the square head. A radius is formed in the tapered ramp.
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Citations
18 Claims
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1. A method for producing an anvil for an impact tool comprising:
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providing an anvil comprising steel having less than 0.15% carbon and about 2 to about 4% Ni; and
subjecting the anvil to a plurality of heating and quenching cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An anvil for an impact tool comprising:
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a body formed of a steel having less than 0.15% carbon and between about 2.95 and about 3.55% Ni, and between about 1.0 and about 1.45% Cr, said body having an exterior layer having a carbon content greater than 0.15% carbon formed by carburization of the body; and
a microstructure having more than 90% tempered martensite formed from a plurality of heat treatment/quenching cycles. - View Dependent Claims (9, 10, 11, 12)
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13. An impact wrench comprising:
an anvil having a body formed of an alloy steel having less than 0.15% C and between 2.95 and 3.55% Ni, and between 1.0 and 1.45% Cr, said body being formed of more than about 90% tempered martensite which are formed by a plurality of heating and quenching cycles. - View Dependent Claims (14, 15, 16, 17, 18)
Specification