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Right lubrication for your hot forging will result in  quality and productivity
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Right lubrication for your hot forging will result in quality and productivity

October 17, 2022 3:07 pm

Lubrication of forging process is not easy task; it depends on the right selection of lubricants for the right application areas to get the best results.
Lubrication plays an inevitable role in hot forging process to maintain quality and productivity. Hot forging process is performed at extreme high temperature (up to 1250-degree C for steel, 360-degree C to 520-degree C for Al-alloys, 700-degree C to 800-degree C for Cualloys). These temperatures are necessary in order to avoid strain hardening of the metal during deformation. 
A lubricant for forging dies is a chemical compound that has a formulation that makes possible the forging process to be carried out within the limits and parameters considered by the forging industry. Characteristics of ideal lubricants are as follows:

  • Reduce the sliding friction between dies and work piece (Load and energy requirement will be reduced). 
  • Works as a parting agent between die and work piece. (Prevents sticking). 
  • Works as an insulator. 
  • It should develop a balanced gas pressure (Especially in hammer forging with impression (this is called Dieseling effect). 
  • Should be NonAbrasive and Non-corrosive. 
  • Shouldn’t create smoke (Pollution free). 
  • Availability with reasonable cost. 

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Depending upon application areas, profile and metallurgy of forging component, die lubricants can be divided into two major categories: water-based and oil-based. Both types again divided into two sub-categories – with graphite and without graphite. 
Water-based graphite lubricants: It is a kind of suspension where water is added to ultrafine graphite powder along with special additives. This kind is the most familiar type of die lubricant as it is highly consumed. This lubricant can be used as a spray, used by brush or by manual daubing. This is an apt choice if you are looking for heavy and critical press forging operations. This kind of lubricant has the highest dilution ratio in water and is pocket-friendly too as it cut down at per tonnage lubrication cost and gives a long life as a die.
Water-based non-graphite lubricants: These are special water-soluble polymer-based lubricants. This lubricant is the best choice for shallow cavity dies. It is considered to be the most cost-effective solution due to its properties of excellent cooling along with lubrication properties. 
Other Products 
Oil Based Lubricant 
According to your demand for the forging process of lubrication the special additives are added to the graphite with the base of either base oil or vegetable oil. This is the way such suspensions are made.There are a few grades that come without graphite as well. Such lubricants have excellent release properties and provide better flow of material. This lubricant can be used for several  purposes like used in deep cavity hammer forgings, heavy stainless-steel forgings, critical brass and aluminium forgings, and deep extrusions. purposes like used in deep cavity hammer forgings, heavy stainless-steel forgings, critical brass and aluminium forgings, and deep extrusions. 
Spray Guns & Spraying Equipment 
Along with its complete range of die lubricants, SUNLUB TECHNOLOGIES offers its clients an economical solution for application of these die lubricants through Spray Guns & Spraying Equipment.Single side & Dual side spray guns, Spray systems with pressure feeder tanks having capacities 45 & 75 Litres Spray systems with open tank having capacities of 100 & 200 Litres & AODD pumps For better service & minimumresponse time, Sunlub Technologies is having sales network pan India.

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