Slab milling is performed on the top surface of a rectangular workpiece that is 12.0 in...

Slab milling is performed on the top surface of a rectangular workpiece that is 12.0 in long by 2.5 in wide by 4.0 in thick. The helical milling cutter, which has a 3.0-in diameter and eight teeth overhangs the width of the part on both sides. Cutting speed = 125 ft/min, feed = 0.006 in/tooth, and depth of cut = 0.300 in. Determine (a) machining time, in min, and

(b) maximum metal removal rate during the cut.

in in3/min

(c) If an additional approach distance of 0.5 in is provided at the beginning of the pass (before cutting begins), and an overtravel distance is provided at the end of the pass equal to the cutter radius plus 0.5 in, what is the duration of the feed motion.

Enter your answer

min

Expert Solution

samet mamat answered 2 years ago

The top surface of a rectangular work part is machined in a peripheral milling operation. The...

The top surface of a rectangular work part is machined in a peripheral milling operation. The work part is 735 mm long by 50 mm wide by 95 mm thick. The milling cutter, which is 65 mm in diameter and has five teeth, overhangs the width of the part equally on both sides. Cutting speed = 60 m/min, chip load = 0.20 mm/tooth, and depth of cut = 7.5 mm. (a) Determine the time required to make one pass across...

A rectangular box with no top is to have a surface area of 64 m2. Find the...

A rectangular box with no top is to have a surface area of 64 m2. Find the dimensions (in m) that maximize its volume. I got width as X= 8sqrt3/3, length y=8sqrt3/3, and height as z=4sqr3/3 but it is wrong and I don't know why

a rectangular slab of 2024-T6 alluminium alloy is to be machined by a cutting tool of...

a rectangular slab of 2024-T6 alluminium alloy is to be machined by a cutting tool of a rake angle of 6.5 degrees. the friction coefficiet between the tool and the slabmaterial was found to be 0.32 . if the shear yield stress of the alluminium alloy is 210 MN/m^2 , calculate the force in the direction of the tool feed (Fx) for a depth cut (t) of 0.8 mm and a unit tool width of 1mm.

A box with an open top is to be constructed out of a rectangular piece of...

A box with an open top is to be constructed out of a rectangular piece of cardboard with dimensions length=10 ft and width=11 ft by cutting a square piece out of each corner and turning the sides up. Determine the length x of each side of the square that should be cut which would maximize the volume of the box.

A cereal box, in the shape of a rectangular prism and with a closed top, is...

A cereal box, in the shape of a rectangular prism and with a closed top, is to be constructed so that the base is twice as long as it is wide. Its volume is to be 8000cm3。 Find the dimensions that will minimize the amount of cardboard required to make the box.

A rectangular box with no top is to be made to hold a volume of 32...

A rectangular box with no top is to be made to hold a volume of 32 cubic inches. Which of following is the least amount of material used in its construction? a.) 80 in2 b.) 48 in2 c.) 64 in2 d.) 96 in2

A 12.0-kg block is pushed across a rough horizontal surface by a force that is angled...

A 12.0-kg block is pushed across a rough horizontal surface by a force that is angled 30.0◦ below the horizontal. The magnitude of the force is 75.0 N and the acceleration of the block as it is pushed is 3.20 m/s2 . What is the magnitude of the contact force exerted on the block by the surface?

A light ray passes through a rectangular slab of transparent material having index of refraction n=2,...

A light ray passes through a rectangular slab of transparent material having index of refraction n=2, as shown in the figure (Figure 1). The incident angle is θo=50.0∘. a) Determine θa. Express your answer in degrees to two significant figures. b)Determine θb. Express your answer in degrees to two significant figures. c) Determine θc. Express your answer in degrees to two significant figures. d) What is the relationship between the directions of the incident ray and the emerging ray?

A norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular...

A norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. The perimeter of the window is 8m. (a)Write the area of A of the window as a function of r. (b) What dimensions (length and breadth of a rectangle, radius of semicircle will produce a window of maximum area? Write these dimensions in terms of pie and simplify as far as possible.

Find the expressions for the electric surface current density on the wall of a rectangular waveguide...

Find the expressions for the electric surface current density on the wall of a rectangular waveguide for a TE10 mode.

Question