Process for casting hard-faced, lightweight camshafts and other cylindrical products
Abstract
A process for casting a hard-faced cylindrical product such as an automobile camshaft includes the steps of: (a) preparing a composition formed from a molten base metal and an additive in particle form and having a hardness value greater than the hardness value of the base metal; (b) introducing the composition into a flask containing a meltable pattern of a cylindrical product such as an automobile camshaft to be manufactured and encased in sand to allow the composition to melt the pattern and assume the shape of the pattern within the sand; and (c) rotating the flask containing the pattern about the longitudinal axes of both the flask and the pattern as the molten base metal containing the additive in particle form is introduced into the flask to cause particles of the additive entrained in the molten base metal to migrate by centrifugal action to the radial extremities of the pattern and thereby provide a cylindrical product having a hardness value greater at it's radial extremities than at its center when the molten base metal solidifies.
- Inventors:
-
- Corvallis, OR
- Albany, OR
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 870616
- Patent Number(s):
- 5560420
- Assignee:
- United States of America as represented by Secretary of (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22C - FOUNDRY MOULDING
B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; casting; hard-faced; lightweight; camshafts; cylindrical; products; product; automobile; camshaft; steps; preparing; composition; formed; molten; base; metal; additive; particle; form; hardness; value; introducing; flask; containing; meltable; pattern; manufactured; encased; sand; allow; melt; assume; shape; rotating; longitudinal; axes; introduced; particles; entrained; migrate; centrifugal; action; radial; extremities; provide; center; solidifies; particle form; base metal; metal containing; longitudinal axes; composition formed; cylindrical product; /164/
Citation Formats
Hansen, Jeffrey S, Turner, Paul C, Argetsinger, Edward R, and Wilson, Rick D. Process for casting hard-faced, lightweight camshafts and other cylindrical products. United States: N. p., 1996.
Web.
Hansen, Jeffrey S, Turner, Paul C, Argetsinger, Edward R, & Wilson, Rick D. Process for casting hard-faced, lightweight camshafts and other cylindrical products. United States.
Hansen, Jeffrey S, Turner, Paul C, Argetsinger, Edward R, and Wilson, Rick D. Mon .
"Process for casting hard-faced, lightweight camshafts and other cylindrical products". United States. https://www.osti.gov/servlets/purl/870616.
@article{osti_870616,
title = {Process for casting hard-faced, lightweight camshafts and other cylindrical products},
author = {Hansen, Jeffrey S and Turner, Paul C and Argetsinger, Edward R and Wilson, Rick D},
abstractNote = {A process for casting a hard-faced cylindrical product such as an automobile camshaft includes the steps of: (a) preparing a composition formed from a molten base metal and an additive in particle form and having a hardness value greater than the hardness value of the base metal; (b) introducing the composition into a flask containing a meltable pattern of a cylindrical product such as an automobile camshaft to be manufactured and encased in sand to allow the composition to melt the pattern and assume the shape of the pattern within the sand; and (c) rotating the flask containing the pattern about the longitudinal axes of both the flask and the pattern as the molten base metal containing the additive in particle form is introduced into the flask to cause particles of the additive entrained in the molten base metal to migrate by centrifugal action to the radial extremities of the pattern and thereby provide a cylindrical product having a hardness value greater at it's radial extremities than at its center when the molten base metal solidifies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}