Re: [CAD_CAM_EDM_DRO] Re: Digest Number 4217

One also needs to consider the possiblity of "charging" the cast iron
when lapping. Generally lapping in a precision machine shop is a hard
steel surface being lapped by a charged cast iron one. Cast iron is
pretty soft and the surface can become embedded with lapping compound.
Be afraid of abrasives on your cast iron parts. Lapping compund can
actually bite into the surface of cast iron.

R Rogers wrote:

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>turbulatordude <dave_mucha@...> wrote:
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>ps: People who call a ball bearing center in a tailstock a live
>center is my favorite incorrect use of words.
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>/// A tailstock center with bearings and rotates with the work is a "live" center. A center without bearings is a "dead" center and must be greased as it does not rotate with the work.
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>Ron
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>http://www.metalworking.com/news_servers.html
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>http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
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>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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