Method for roller burnishing a heater tube

Details Method for roller burnishing a heater tube Method for roller burnishing a heater tube

2006-08-22

2006-08-22

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

C029S090010, C072S112000, C072S122000

Reexamination Certificate

active

07093481

ABSTRACT:
A process for placing a roller burnished finish on the central portion of an unfinished lathe-turned heater tube includes controlling the rotational speed of the burnishing rollers and the pressure of the burnishing rollers against the central portion of the heater tube so that tooling marks are no longer apparent under substantially 10× magnification and the length of the central portion of the heater tube increases by no more than 0.002 inches per inch of length of the central portion of the heater tube.

REFERENCES:
patent: 3670561 (1972-06-01), Hundere
patent: 5101658 (1992-04-01), Wilson, III et al.
patent: 5337599 (1994-08-01), Hundere et al.
patent: 5540883 (1996-07-01), Jones et al.
“Burnishing Tools and Machines”to Cogsdill Tool Products, 2002, pp. 1-58.
“Robuto Roller Burnishing Tools”to Yamato, 2003, pp. 1-25.
“Bright Burnishing Tools”to Bright, 2004, pp. 1-20.

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