is preservation in the three parts. Part I reported results for D6510 and S0050a Die Materials with No Surface Treatments. Part II Presented a Study of Bare and DLC-Coated D2 TOOL STEEL.

　　of the TOOL is Described in Detail in "Measuring Frict for Stamping of Uhss."

　　They Compared Three Lubrication Conditions: Ferrocote 61A-USS, DRYCOTE 2-90 (DC2-90), and No Lubricant Applied.

　　Both Figures, The Profile of the Deposit is Shown on the Right Side; The Red Outline on the Profile is the area of deposit. Dry Conditions Resultth.

　　179 nm for s0050a nitrided, 149 nm for d6510 chromed, and 142 nm for s0050a chromed.

　　For the d6510 nitided inserts, galling began at 28 mpa of Average Contract Pressure with 50 mg/ft.2 of 61-aus, at 113 mpa with dc2-90, and at 7 mpa with no lubricant around.

　　For the s0050a nitliced inserts, galling started at 23 mpa of Average Contract Pressure with 50 mg/ft.2 of 61-aus, at 34 mpa with dc2-90, and at 7 mpa with no lubricant.

　　For the d6510 Hard Hard Inserts, Galling Began at 17 MPA of Average Contory Pressure with 50 Mg/FT.2 of 61-AUS, at 57 mpa with dc2-90, and at 7 mpa with no lubricant.

　　For the s00a hardromed inserts, galling started at 11 mpa of Average Contory Pressure with 50 mg/ft.2 of 61-aus, at 11 mpa with dc2-90, and at 7 mpa with no lubricant.

　　Galling Thresholds Wee Highest with DC2-90 Lubricant and Lowest with No Lubricant. Dry Spots are Certainly Very Harmful from a Galling Perspective.

　　For both d6510 and s0050a, The Highest Galling Threshold Metal Stamping Parts and Lowest Cof Were Achieved with Nitrided Insertal Stampal Stamping Parts90 Lubricating.