Table 5 Processing parameters and their levels.

From: Investigation of surface integrity in inconel 718 enhanced by heat treatment, ultrasonic impact and multi-media jet processing

Level

Experimental parameters

ATT/℃

USF/Hz

JP/MPa

Level 1

650

100

20

Level 2

670

120

25

Level 3

690

140

30

Level 4

710

160

35

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