Method for forming braze-bonded abrasive turbine blade tip

Details Method for forming braze-bonded abrasive turbine blade tip Method for forming braze-bonded abrasive turbine blade tip

B - Operations, Transporting

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26/148, 113/83

B23P 15/00 (2006.01) B23K 35/02 (2006.01) B23K 35/32 (2006.01) C23C 24/10 (2006.01) F01D 5/20 (2006.01)

Patent

CA 1202768

METHOD FOR FORMING BRAZE-BONDED ABRASIVE TURBINE BLADE TIP Abstract of the Disclosure In a preferred embodiment, a turbine blade tip is coated with an abrasive for wear forming a seal track in a gas turbine engine by gluing a self-sustaining preform comprising abrasive alumina grit and nickel-base superalloy braze powder onto the tip and heating to braze the grit to the tip. The preferred grit is titanium coated to strengthen bonding between the alumina and the braze alloy.

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