Introduction of Machining
Precision CNC machining parts Machining as a shape-producing
method is the most universally used and the most important of all manufacturing
processes. Machining is a shape-producing process in which a power-driven
device causes material to be removed in chip form. Most machining is done with
equipment that supports both the work piece and cutting tool although in some
cases portable equipment is used with unsupported workpiece.
Precision CNC machining parts Low setup cost for small
quantities. Machining has tow applications in manufacturing. For casting,
forging, and pressworking, each specific shape to be p5roduced, even one part,
nearly always has a high tooling cost. The shapes that may be produced, even
one part, nearly always has a high tooling cost. The shapes that may be produced
by welding depend to a large degree on the shapes of raw material that are
available. By making use of generally high cost equipment but without special
tooling, it is possible, bu machining, to start with nearly any form of any
material, so long as the exterior dimensions are great enough, and produce any
desired shape from any material. Therefore, machining is usually the preferred
method for producing one or a few parts, even when the design of the part would
logically lead to casting, forging or pressworking if a high quantity were to
be produced. Close accuracies, good
finishes. The second application for machining is based on the high accuracies
and surface finishes possible.
Precision CNC machining parts Many
of the parts machined in low quantities would be produced with lower but
acceptable tolerances if produced in high quantities by some other process. On
the other hand, many pars are given shapes by some high quantity deformation
process and machined only on selected surfaces where high accuracies are
needed. Internal threads, for example, are seldom produced by any means other
than machining and small holes in pressworked parts may be machined following
the pressworking operations.
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