Method for manufacturing composite double-metal fracture splitting connecting rod
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United States of America Patent
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Jul 4, 2017
Grant Date -
Feb 26, 2015
app pub date -
Oct 24, 2012
filing date -
Apr 17, 2012
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Abstract
The present invention provides a method for manufacturing a composite double-metal fracture splitting connecting rod, comprising the steps of: providing a moveable spacer at a large end of a mold cavity of a connecting rod, to divide the mold cavity into two separate parts; casting a connecting rod body and a connecting rod cap with material for the main body of the connecting rod; removing the spacer from the mold cavity when the majority of the material is solidified, then injecting material for a fracture splitting region into an empty mold cavity obtained after the removal of the spacer, and metallurgically bonding the two types of material to form a composite double-metal casting; then, separating the connecting rod body from the connecting rod cap by a fracture splitting apparatus along preset fracture surfaces; and positioning and accurately assembling through engaged staggered structures on the two fracture surfaces.
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