Broaching Machine
a metal cutting
machine for working surfaces of various shapes with a tool known as a broach.
Used for working
(broaching) internal and external surfaces, broaching machines are divided into
those for general use and for special uses.
The working motion
of such machines is the straight motion of the ram, which holds the broach, or
of the item, if the broach is stationary.
Broaching machines
are produced with either horizontal or vertical placement of the rams, which
may number from one to six, and with single or multiple positions
A special group
continuous broaching machines includes chain and rotary models.
The major parameters of broaching
machines are the pulling capacity of the ram, which may reach 1 meganewton, and
the stroke length of the ram, which may reach 2 m.
The cutting speed of general-purpose
machines varies from 15 to 20 m/min and in special machines may reach 90 m/min.
The cutting speed in continuous
machines ranges from 1.5 to 15 m/min.
The drive in these machines is
usually hydraulic, but high-speed machines use electromechanical drive.
Broaching machines are used in mass
production and in producing items in large lots. They provide high precision
(classes 1–2) and low surface roughness on the worked surfaces (classes 8-10).
Broaching Machines Specialties (BMS) is a full service
broach and machine company that has been specializing in broaching machines
since 1960
BMS caters to multinational corporation as well as small
manufacturing ventures by offering new machines from our
standard machine line, specially designed broaching system for unique broaching
applications, remanufactured or used broaching machine from our stock of over
450 previously owned machines, production broaching services and parts and
service for nearly every broaching machine manufactured in the US.
Broaching has
the positive advantages like high productivity and repeatable product quality.
Productivity
improvement to ten times or even more is not uncommon, as the speed of metal
removal by broaching is vastly greater.
Roughing, Semi finishing and finishing of the
component is done just in one pass by broaching, and this pass is generally
accomplished in seconds. Thus Broaching has proved to be a most simple, highly
productive cost effective and practical machining operation.
It requires lesser manpower, extending its use in wide
fields of applications with exceptional savings on machine and tooling cost.
Broaching is highly productive Metal Cutting Process,
in which the metal is removed by successive action of number of cutting teeth
incorporated in the tool called Broach.