Common lubrication problems in metal processing and solutions

(1) Select oil-based fluids with large fat content or oil-containing additives and cutting oils with low friction coefficients (2) Replace active oil-based cutting fluids with inactive oil-based cutting fluids (3) Sampling cutting fluids for sample inspection, if the main quality indicators are obvious Deterioration, should be replaced with new liquid (4) increase the liquid supply pressure, direct supply to the flank (5) when using water-based cutting fluid, should use the extreme pressure emulsion containing excellent performance, and use in high concentrations (6) Recommended SCC638 SCC103 SCC628 SCC102
Bonding on the tip of the blade, increasing the build-up edge, increasing the wear of the cutting tool. The high temperature and strong friction between the rake face of the tool and the chip, together with the poor anti-adhesion performance of the cutting fluid, results in an abnormal increase of the built-up edge and a fracture. Blade damage and exfoliation lead to increased tool wear (1) Replace with active oil-based cutting fluid (2) Check cutting fluid activity. If activity is reduced, active extreme pressure additive (3) should be added to replace water-based cutting fluid with active extreme pressure additive. Cutting Oil (4) Recommended NC300, NC400, NC500, NC500A
Cutting zone temperature is too high, resulting in softening, melting of the tip, discoloration of the cutting chip, resulting in reduced tool durability. Insufficient cooling of the tip part (1) Change the oil-based cutting fluid to water-based cutting fluid (2) Increase the liquid supply and supply pressure (3) Control the temperature of the cutting fluid. If the temperature rises too high, increase the volume of the cutting fluid tank or take measures to reduce the temperature. (4) Recommended SCC206, SCC103 SCC102 SCC628 SCC638 Reduced machining accuracy (1) Uneven or insufficient cooling, excessive temperature rise of the workpiece Causes thermal deformation (2) Excessive depth of cut due to built-up edge buildup (1) Sufficient supply of cutting fluid (2) Maintains constant float temperature (3) Replaces cutting fluid with excellent anti-stick properties (SCC638 SCC103)
(4) Supplementary extreme pressure additive (5) Recommended SCC638 SCC103 When oil-based cutting fluid is replaced with water-based cutting fluid, tool life is reduced. Lubricity is insufficient due to the inherent difference in fluid type (1) Extreme pressure emulsion containing extreme pressure additives is used. (SCC638SCC102 SCC103)
(2) Increase the concentration of the cutting fluid (3) The tool life of the water-based cutting fluid is gradually reduced. The tool grinding interval is getting shorter and shorter (1) The cutting fluid is caused by the lubricating oil or hydraulic oil of the lubrication system mixed in. The additive content is reduced (2) For water-based cutting fluids, only make-up water is added, and the original fluid is not added proportionately, resulting in a decrease in the concentration of the cutting fluid (1) Replace with a new fluid (2) Additive additive (3) Take measures to prevent oil leakage (4) Check the concentration of the cutting fluid and supplement the original fluid (5) Recommended SCC638 SCC103 *The above recommendations are for reference only, if the actual application conditions can be provided by our sales engineers or technical customer service more suitable products or comprehensive solutions Fault content Causes Causes Solution Tool chipping and damage Thermal shock due to broken cooling , Lead to tool chipping and damage (1) Improve the liquid supply method, expand the liquid supply range (2) Change the cutting fluid with poor cooling (cutting oil)
(3) Carbide cutting tools are used for dry cutting or special cutting oil for carbide cutting tools (4) Recommended NC300 NC400 NC500 Deterioration of the machined surface of the workpiece (roughness, tear, strain) (1) Insufficient lubrication Adhesion of large build-up edge (2) Scrape caused by chip adhesion (1) Replace with a good cutting fluid (active extreme pressure cutting oil)
(2) Improve the filtration method to remove fine chips (3) Improve the liquid supply method to avoid oil cut off (4) Recommended NC300 NC400 NC500
Drilling, Reaming, Tapping of the Tool During Tapping and Damage (1) The oil is cut off from the blade, causing insufficient lubrication. (2) Poor adhesion and lubrication of the cutting fluid. Insufficient edge lubrication. (1) Increased fluid supply (2) Replacement Good lubricity and anti-adhesive cutting oil (3) Good adhesion paste cutting fluid for tapping (4) Complementary cutting fluid concentration (5) Recommended NC300 NC500 SCC638