Mechanical assemblies and methods of making same

Details Mechanical assemblies and methods of making same Mechanical assemblies and methods of making same

1993-03-29

1994-07-12

Kamen, Noah

Expansible chamber devices

Piston

Nonmetallic portion

403381, F16J 900

Patent

active

053278143

ABSTRACT:
Two members which initially have a very loose, complementary dovetail relationship to one another are firmly secured together by causing the material of a ductile locking member to flow into the space which initially exists between the complementary dovetail shapes. This technique is especially suitable for joining materials which are otherwise difficult to unite. For example, this technique can be used to secure an insert of tungsten carbide or ceramic in a main member of steel. Wear or bearing inserts of hard material can be secured in this way to the hydraulic pistons (especially the master pistons) used in compression release engine brakes.

REFERENCES:
patent: 4368634 (1983-01-01), Brown et al.
patent: 4706625 (1987-11-01), Meistrick et al.
J. T. Carroll et al., "Compression Brake Master Piston Assembly: A Cost Effective Use of a Structural Ceramic to Reduce Sliding Wear in Heavy Duty Diesel Engines," SAE International, International Congress and Exposition, Detroit, Michigan, Mar. 1-5, 1993.

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