Summary
Anatomy of a Machine Tool, part 4 - Cover Story
Grinding is one of the most common processes in machining operations. Its wide range of applications has produced many variations on the basic cylindrical and surface grinding designs. These include jig grinders, ultra-precision bearing ball grinders and a broad spectrum of others. In designing a grinding machine, some of the major issues are abrasiveness, hardness, what bearing type to use and dressing method.See the full content of this document
Extract
Grinders and abrasive machining.
Anatomy of a machine tool
Editor's note: Part 1 of this series, published in February 1993, covered machining centers. Part 2, on machine controls, appeared in June 1993. Part 3, published in May 1994, examined lathes and turning machines. Grinding, as a method for shaping hard materials, may well be one of the most fundamental of all technologies, quite probably predating metalworking itself. There is evidence that a number of Neolithic peoples plus the Egyptians and the builders of Stonehenge, to name just a few, used sand as an abrasive to smooth the stone tools and building blocks they used. We're still doing essentially the same thing today, but on a much more controlled and sophisticated basis, when we finish a hardened steel workpiece on a CNC grinder. Grinding is a chip-making metalcutting process, every bit as much as turning or milling, except that it's performed on a "micro" level where the chips are too small to be easily ...See the full content of this document
Sponsored links
