During the turning operation, the cutting speed = 2.95 m/s, the feed f = 0.40 mm/rev,...
In a turning operation, cutting speed = 1.8 m/s, feed = 0.30 mm/rev, and depth of cut = 2.6 mm. Rake angle = 8°. After the cut, the deformed chip thickness = 0.56 mm and before the cut, the chip thickness = 0.26 mm. Determine (a) shear plane angle, (b) shear strain, and (c) material removal rate. Use the orthogonal cutting model as an approximation of turning
In an orthogonal metal cutting test in a turning operation, the following conditions were recorded cutting speed = 160 m/min, feed = 0.28 mm/rev, width of cut-2.4 mm, rake angle-70. After the cut, the deformed chip thickness 0.45 mm, cutting force-950 N and thrust 400 N. Determine (a) shear plane angle, (b) The friction angle, (c) The specific energy of workpiece material, (d) The shear stress on shear plane (e) The friction force (f) The shear strain during the deformation...
a) A workpiece (φ-75 mm, 1 275 mm) is machined using turning at a feed rate of 0.25 mm/rev. At a cutting speed- 3.5 m/s, the turning tool is ineffective after machining 3 parts, and at a cutting speed = 2.5 m/s, the turning tool is effective for producing 20 parts. Calculate the Cutting Speed that will allow 30 parts to be machined between tool changes [20 marks] b) An aluminium alloy workpiece (tensile strength - 325 N/mm2 and yield...
1. The cutting conditions in a turning operation are v=2m/s f=. 25 mm. and d 3.0 mm. The tool rake angle 10 degrees, which produces a deformed chip thickness t c = 0.54 mm. Determine (a) shear plane angle, (b) shear strain. and (c) material removal rate. Use the orthogonal cutting model as an approximation of the turning process. 3. The cutting force and thrust force have been measured in an orthogonal cutting operation: Fc = 300 lb and Fc...
Chapter 15: 1. Shear plane angle and shear strain: In an orthogonal cutting operation, the tool has a rake angle = 16°. The chip thickness before the cut = 0.32 mm and the cut yields a deformed chip thickness = 0.72 mm. Calculate (a) the shear plane angle and (b) the shear strain for the operation. 2. Shear strength: The cutting force and thrust force have been measured in an orthogonal cutting operation to be 301 lb and 291 lb,...
Question 1 A turning operation is carried out on aluminum. Based on the specific energy values in Table 20.2, determine material removal rate and cutting power in the operation under the following sets of cutting conditions: (a) Cutting speed 5.6 m/s, feed 0.25 mm/rev, and depth of cut 2.0 mm; and (b) cutting speed- 1.3 m/s, feed 0.75 mm/rev, and depth 4.0 mm. Question 2 Consider a turning operation performed on steel whose hardness 225 HB at a cutting speed...