Web Statistics

What is Cold Forging

Cold forging, unlike hot forging, deforms metal below its recrystallization point - near to or at room temperature. A preferred forging method for softer metals (such as aluminum), cold forging is less expensive and has the ability to produced forged parts that require little no finishing processes.

A cold working process, cold forging entails bar stock to be inserted into a die and then squeezed with a second closed die.

Similar to the cold heading process (the difference that cold forging makes use of vertical presses instead of horizontal cold heading machines), the workpiece is squeezed between two dies until it assumes the desired shape of the die.

Deformation occurs at room temperature, causing a change in the size and shape of the metal. Note here that this forging method is volume specific and generally compliments the cold heading processes by adding more intricate shapes to the blank used in cold heading processes.

Basic equipment types used for the forging method range to include vertical presses, either fully automatic or manually fed. Also note that these vertical presses used can be either hydraulically powered or mechanically powered.

A reliable and cost effective process, some of the parts produced using cold forging includes those for use in the automotive electrical industry and range to include:

  • Parts for car seats and alternators (such as the claw-pole).
  • Different types of gears used on other parts.
  • Parts for starter motors such as transmission solenoid body, core and plunger, to name but a few examples).
  • Motorcycle parts such as those for flywheel magnetos.
  • Parts that are hollow with shafts and stems.
  • Parts used for valves and switches.
  • Cold forging is also used to produce anti-vibration spiders and parts.

 

The Benefits of Cold Forging

This particular forging process, like hot forging , offer manufacturers a number of advantages, including:

  • No heating is required in cold forging processes.
  • This forging process offers a better interchangeability as well as reproducibility.
  • A better surface finish is achieved and contamination problems experienced are minimized.
  • Cold forging offers a superior dimensional control.
  • The capability to impart directional properties onto the metal being formed.

 

The Disadvantages of Cold Forging

Cold forging has the following disadvantages:

  • The production of an undesired residual stress.
  • Metals forged are less ductile and higher forces are required during cold forging processes.
  • Because of the higher forces required in this process, heavier and more powerful equipment is needed as well as stronger tooling.
  • Though capable of imparting directional properties onto the metal, these properties may be detrimental.
  • The surfaces of the metals used must be clean and scale free.
  • Because of the loss of ductility that accompanies strain hardening, intermediate anneals may be required.

 

Back to Main Page: Metal Forging

Further Suggested Reading:

Get a quote about metal forging

ESSENTIAL TOOLS
from the China buyers'
toolbox
Go
CHINASAVVY IN THE MEDIA
What the papers say
Go
ChinaSavvy - Import China goods, export import China, China import products
contact details
UK
European Union
USA
Canada
  • Chinasavvy
  • 1 Reservoir Corporate Center
  • 4 Research Drive - Suite 402
  • Shelton, Connecticut 06484
  • USA
China
Austraila
  • Chinasavvy HK Ltd
  • 702-705, Building 7
  • Beijiaochang Henglu 1
  • Guangzhou 510050
  • P R China
For more contact details ChinaSavvy Contact Details
Corporate member of:
CHINA-BRITAIN
BUSINESS COUNCIL

ChinaSavvy - Coroprate Member British Chamber of Commerce, GuangdongCorporate Member
The British
Chamber of Commerce
Guangdong

ChinaSavvy - Coroprate Member American Chamber of Commerce in South ChinaCorporate Member
The American
Chamber of Commerce
in South China

ChinaSavvy - Company member Institute of Quality AssuranceCompany Member
Institute of
Quality Assurance

corner ISO 9001-2008 Certified Company
RAPID PROTOTYPING
Product development and prototyping in metals and plastics. more info...
YOUR QUALITY
IS OUR PRIORTY


more info...
METALS & PLASTICS
COMMODITIES


daily prices  Go
ChinaSavvy - Import China goods, export import China, China import products
videos

See videos of all the major processes we work in.  Click VIDEO to view videos.  Click PAGE to open corresponding page:

Investment casting:

  

Sand casting:

  

Diecasting:

  

Permanent mold gravity casting:

  

Lost foam casting:

  

CNC laser cutting:

  

CNC bending:

  

CNC punching:

  

Aluminum extrusion:

  

CNC milling:

  

CNC lathe:

  

Robot welding:

  

Manual welding:

  

Powder coating:

  

Quality assurance:

  

ChinaSavvy is a western-owned & managed sub-contract manufacturing and sourcing company providing world-class quality at China prices. We are driven by a passion for quality and excellence.
SEARCH
Outsourcing in China - Enquiry ChinaSavvy - Get a Quote Now
ChinaSavvy - Import China goods, export import China, China import products