August 2021 Volume 3

EQUIPMENT & TECHNOLOGY

2.2. Oil Graphite An oil graphite, as the name implies, brings with it the benefits of graphite and also lubricates slightly better than a pure water graphite does, due to the oil content. In addition, the machine is protected against corrosion. Depending on the requirements, products with different viscosities are available. 2.3. Hybrids Practical experience has shown that there is a need for lubricants that can cover both processes with and without graphite. These products are called hybrids. The fact that the degree of deformation of the produced parts varies is often the reason for using several lubricants. Hybrids are lubricants that combine the advantages of graphite-free and graphite- containing lubricants. They are therefore particularly suitable for forging companies with a wide range of products. Hybrids can be matched in such a way that by introducing them into production, one lubricant can be used for all forging processes. This ensures that all components can be lubricated with just one medium. This not only helps employees, as there is now only one product on the shop floor, but also reduces costs in terms of inventory and ordering procedures. In addition, a lower proportion of graphite in hybrids means that fewer particles are left in the circulating air, the periphery of the press and on the surface of the components. 3. Synthetics Many forging companies are willing to "remove" graphite from production and give white products a chance. White products are applicable to steel and steel alloys, aluminum, titanium and titanium alloys, and nickel and nickel alloys. The advantages of "white lubricants" are mainly a cleaner production environment and less post-processing due to cleaner surfaces with almost identical lubricating properties compared to graphite products. The type of products varies, depending on the material used and the application. You can also run our salt product in circulation

3.1. Transparent The water-based transparent lubricants form a white release film in the die. They are pigment-free and very well miscible with water and can therefore be applied in good doses by automatic spraying machines or also manually. The contained ingredients ensure good wetting of the die. Due to its excellent driving and release properties over a wide temperature range, it is ideally suited for demanding hot and semi-hot forming operations. 3.2. White Lubricants Water-based white synthetic lubricants are available specifically for hot forming of aluminum. These can be diluted by the customer to the required application concentration and then applied with all standard spray equipment.

Typical Steering & Suspension forged with Graphite-free White Products 3.3. Circulating Lubricants Special transparent fluids are available for horizontal high speed forging.They are very well miscible with water and produce colorless solutions. Good wetting of the components is ensured by the very low foaming behavior circulating.

Table: Material &Chemistry Selection

Chemistry

Water Graphite Salt-basedWhite Products Polymer Based Lubricants

Oil Graphite

Coatings

Materials

• Steel • Aluminum • High Strength Alloys

• Steel • High Strength Alloys • Specialty Steel Alloys

• Aluminum • Steel

• Nickel Based Alloys • Titanium and Titanium alloys • Special steel alloys

• Specialty Steel Alloys • High Strength Alloys • Non-Ferrous Metals

FIA MAGAZINE | AUGUST 2021 14