definition of spark out
definition of spark out
(OP)
Hello:
Just wanted to know if anyone could give me a definition of the term 'spark out' as it relates to the grinding/lapping process. I have been doing ID slicing, dicing, and lapping for years, but I have never heard this term until recently and I only have an idea of what it actually means.
Thanks in advance,
Pete
Just wanted to know if anyone could give me a definition of the term 'spark out' as it relates to the grinding/lapping process. I have been doing ID slicing, dicing, and lapping for years, but I have never heard this term until recently and I only have an idea of what it actually means.
Thanks in advance,
Pete





RE: definition of spark out
A case in point is grinding a part on a Blanchard Grinder going from rough to flat and parallel. When the surface clears you make a very small adjustment on the infeed and let it "spark out". This is to average out any imperfections caused by the grinding wheel or machine. This is more of a concern with solid wheels than on segment wheels.
RE: definition of spark out
Robert Setree
www.advanced-grinding.com
RE: definition of spark out
We had (4) 48" Blanchards with one having an in house designed infeed system that would slow the approach down and change it from stepped to linear. This machine along with diamond lapping could produce flat to less than a quarter light band.
RE: definition of spark out