Rolled and folded lip and manufacturing method thereof
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jun 2, 2016
app pub date -
Feb 3, 2015
filing date -
Feb 3, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A rolled lip for rope shovel machine buckets and for excavator buckets of high hardness and improved weldability is provided. The rolled lip is folded and used in buckets with capacities above 25 m3. The lip is made of rolled steel plates of up to 3,000 mm wide and 12,000 mm long and up to 250 mm thick, wherein the steel has flow characteristics between 600 and 900 MPa. The noses and holes used to build the lip are drilled and the shape of the noses is provided by templates or gauges. A method for manufacturing such a rolled lip is also provided.
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