Cold Pilgering is used to produce a bigger cross sectional area into smaller one though gradual reduction by feeding the tube into a pair of dies which has got a tapered groove.
It is a kind of cold rolling where both diameter as well as thickness is reduced.
End result: Minimized Dimensional Pipes
Cold: Use of Heat is not observed
Pilgering: Reduction of Outside diameter
Technology: Technique and machine involved in the process
Cold Drawing Process:
The Pipes and tubes undergo Electric Resistance Welding in Tube mills and Surface Treatment Process.
Pickling: Water Wash —> Phosphate Coating —> Water Wash —> Hot water Wash —> Metallic —> Soap Coating —> Drying
Hot Piercing Process
The process which uses tapered mandrel and ring dies to decrease the tube diameter or cross-sectional area by up to 90%. It reduces the wall thickness of the given pipe in one process step depending upon the type of tube material.
The process of Cold Pilgering Technology Diagram
The machine in which is carried out is called Pilger Mill or Machine.
The applications of Cold pilgered tubes can be immediately done. They are ready for finishing and shipment as early they are out of the mill with finalized finishing. For additional cold-working steps, the tubes undergo intermediate annealing.
Metamorphosis Engitech India Private Limited (MEIPL) uses Cold Cold Pilgering for making Low Diameter to Thickness Ratio tubes (D/T) like tubes of 25 mm diameter and 6.35 mm thickness in 1020,1026, ST-52 and C-45 steel grades. We provide ultimate finishing and ready to use tubular pipes for you.
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