Thread Rolling Process
2
Grease Cos Documents Thread Rolling Machine Thread rolling is a chip less cold forming process. A plain cylindrical blank, with a diameter part way between the major and minor diameters of the finished thread, is rotated and squeezed between cylindrical type hardened steel dies whose working surfaces are the reverse of the thread form to be produced. The thread of the die penetrate the surface of the blank as it rolls between them, displacing material to form the roots of the threads, and forcing the displayed material radially outward to form the crests. Unlike other threading process, no material is wasted. Most threads are rolled by the in-feed method in which the entire thread length is formed simultaneously without axial movement of the part. Threads those are too long to be produced by the in-feed method can, however, be rolled by a thru feed method on these types of machines. 2 DIE TYPE THREAD & FORM ROLLING MACHINE The MD 25 form & thread rolling machine is most compact form & thread rolling machine availabl e in the market. Its unique design concept is primarily aimed at covering the widest universal range of applications. The rolling of threads, knurls, cross knurls, worms & spindles etc. as well as burnishing can be carried out very effectively. By means of tilting rolling spindle the longer working piece such as bars u p to 6 meters long can be rolled by the through feed rolling meth od. SALIENT FEATURES Fabricated steel frame. Hardened & ground "T" Type slide for better accuracy & rigidity. Range of cycle time & rolling speeds. High production rate. User friendly setup & running procedure. Low pressure hydraulic power pack to ensure to low heat & minimum maintenance. High efficient & heavy duty gear box for continuous operation. Very Low Running Cost.
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Transcript of Thread Rolling Process
Grease Cos Documents
Thread Rolling Machine
Thread rolling is a chip less cold forming process. A plain cylindrical blank, with a diameter part way
between the major and minor diameters of the finished thread, is rotated and squeezed between
cylindrical type hardened steel dies whose working surfaces are the reverse of the thread form to be
produced. The thread of the die penetrate the surface of the blank as it rolls between them, displacing
material to form the roots of the threads, and forcing the displayed material radially outward to form the
crests. Unlike other threading process, no material is wasted. Most threads are rolled by the in-feed
method in which the entire thread length is formed simultaneously without axial movement of the part.
Threads those are too long to be produced by the in-feed method can, however, be rolled by a thru feed
method on these types of machines.
2 DIE TYPE THREAD & FORM ROLLING MACHINE
The MD 25 form & thread rolling machine is most compact form & thread rolling machine available in
the market. Its unique design concept is primarily aimed at covering the widest universal range of
applications. The rolling of threads, knurls, cross knurls, worms & spindles etc. as well as burnishing
can be carried out very effectively. By means of tilting rolling spindle the longer working piece such
as bars up to 6 meters long can be rolled by the through feed rolling method.
SALIENT FEATURES
Fabricated steel frame.
Hardened & ground "T" Type slide for better accuracy & rigidity.
Range of cycle time & rolling speeds.
High production rate.
User friendly setup & running procedure.
Low pressure hydraulic power pack to ensure to low heat & minimum maintenance.
High efficient & heavy duty gear box for continuous operation.
Very Low Running Cost.
Grease Cos Documents
TECHN ICAL SPECIF ICAT ION MD-25
Workpiece Dia Ø (infeed) 3-24mm
Max pitch of thread
(Standard V Thread)3mm
Max serrations pitch 1.0mm
Max. Die. Width 80mm
Max.Through feed thread length 6 meter
Max. Rolling Force
(infinitely adjustable)8 tons
Spindle Axis swivel for through feed 5°
Roll spindle Ø 40mm
Max Rolling Die Ø 120mm
Roll spindle speed (RPM) 60/90
Main Motor 2.2kW
Hydraulic power pack motor 0.75 kW
Coolant pump 1/8 HP
Electrical connection --- 415 V, 50 Hz, 3 Phase ---
Approx. Weight 1000 Kg
The Maximum values cannot be attained simultainuesly and are dependent on the characterstics of the material of the
ob.The manufacturer reserves the right to modify the machine and accessories without prior Notice.
