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The Production of Extruded Valves

The Production of Extruded Valves THERE are three processes by which internal combustion engine valves are made, differing chiefly in the initial stages. These are 1 hand forging by drawingdown the stem 2 electricupsetting of the head 3 the extrusion process. In each of the three processes the final shaping of the valve blank is done by stamping between dies in a suitable press. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

The Production of Extruded Valves

Aircraft Engineering and Aerospace Technology , Volume 12 (6): 2 – Jun 1, 1940
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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb030658
Publisher site
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Abstract

THERE are three processes by which internal combustion engine valves are made, differing chiefly in the initial stages. These are 1 hand forging by drawingdown the stem 2 electricupsetting of the head 3 the extrusion process. In each of the three processes the final shaping of the valve blank is done by stamping between dies in a suitable press.

Journal

Aircraft Engineering and Aerospace Technology – Emerald Publishing

Published: Jun 1, 1940

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