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. 2018 Feb 27;9(3):98. doi: 10.3390/mi9030098

Table 4.

Processing parameters of ultrasonic extrusion.

Test-Pieces Invariants Variables
Test-piece 1 Keep the rotational speed n and feed f unchanged
n = 570 r/min, f = 0.2 mm/r		 Changing the extrusion variable P/μm
80 130 180 230
Test-piece 2 Keep the rotational speed n and extrusion variable P unchanged
n = 570 r/min, P = 130 μm		 Changing the feed f/mm/r
0.1 0.2 0.3 0.5
Test-piece 3 Keep the feed f and extrusion variable P unchanged
f = 0.2 mm/r, P = 130 μm		 Changing the rotational speed n/r/min
290 410 570 820