Choice of cryogenic fluid

Cryogenic assisted machining

Figure 2 - Wear patterns as a function of temperature [1]

Figure 4 - Turning tool used in cryogenics

Figure 5 - Oxygen meter for personal protection against the risk of anoxia

Figure 6 - Safety precautions when using cryogenic fluids from the Afsset document [AIR2006and1006Ra].

Figure 7 - Signage used in cryogenics [AIR2006and1006Ra].

Figure 9 - Carbide/Ti17 pion friction coefficient as a function of cutting speed for a dry configuration with external cryogenic lubrication

Figure 10 - Temperature fields during machining of a Ti64 titanium alloy

Figure 12 - Residual surface stresses for different lubrication modes

Figure 13 - Geometric deviation when machining steel under three different lubrication modes [9]

Figure 14 - Ti64 alloy machining chips

Figure 15 - Wear criteria after 5 min machining of Ti64 alloy for different lubrication modes and three cutting speeds [10]

Figure 16 - Evolution of clearance wear VB as a function of machining time for three cutting speeds

Figure 17 - Evolution of clearance wear VB as a function of machining time for different types of cooling

Figure 18 - Evolution of clearance wear as a function of machining time for different feed rates and assistance pressures