Process for producing master cylinders

Details Process for producing master cylinders Process for producing master cylinders

1976-07-06

1980-06-24

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164113, B22D 1902, B22D 1908

Patent

active

042090580

ABSTRACT:
Strong, light weight master cylinders for hydraulic braking systems are produced by incasing a section of steel tubing within a diecasting of metal such as an alloy of magnesium or aluminum. Master cylinders can thus be produced by diecasting the metal in situ around the tube so that it incases the exterior surface and extends over one end thereof. Tooling requirements are minimal, with little if any machine being needed following the diecasting operation. Unit production cost is thus lower than that of castings made with permanent molds. Light weight diecastable metals can thus be used in combination with strong but relatively thin steel tubing to provide durable master cylinders that are lighter, simpler and less expensive to make than cast iron cylinders.

REFERENCES:
patent: 875448 (1907-12-01), Milne
patent: 1549218 (1925-08-01), Raym
patent: 3307423 (1967-03-01), Dansi
patent: 3424483 (1969-01-01), Harrison
patent: 3888295 (1975-06-01), Schillinger
patent: 4003422 (1977-01-01), Schramm et al.
patent: 4008749 (1977-02-01), Bellocci et al.
40-24764 10001965 JPX 164 100
"The German Printed Publication", Off. 2,330,803, 1/75.
"The German Printed Publication", Aus. 1,282,243, 11/68.

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