The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2014
Filed:
Nov. 02, 2006
Ronald R. Akers, Guntersville, AL (US);
Robert John Madeira, Commerce Township, MI (US);
Gary M. Campbell, Albertville, AL (US);
Dennis Mckinney, Boaz, AL (US);
Richard Mckelvey, Albertville, AL (US);
Ronald R. Akers, Guntersville, AL (US);
Robert John Madeira, Commerce Township, MI (US);
Gary M. Campbell, Albertville, AL (US);
Dennis McKinney, Boaz, AL (US);
Richard McKelvey, Albertville, AL (US);
Ajax Tocco Magnethermic Corporation, Warren, OH (US);
Abstract
Systems and methods are presented for automated induction hardening of crankshaft bearings while controlling the crankshaft TIR, in which one or more first bearings are hardened by induction heating and quenching, followed by measurement of the crankshaft TIR. The measured TIR is then evaluated and one or more second bearings are hardened using a second induction heating power profile and a second quench flow profile, at least one of which is selectively adjusted according to the measured crankshaft TIR. In this manner, the hardening of the second bearing(s) can counteract any bending or warpage caused by the first hardening process to control the resulting final TIR of the crankshaft.