(a) The formula for calculating the actual cutting time is given by
Where A(approach) = O(overtravel) =D(Cutter Diameter) /2
And Ft is Feed per tooth
So,
(b) The formula for calculating max. Material removal rate is given by
Where w=width
d= depth of cut
n = speed ( distance/min)
> Let me know if you guys ever find a tool capable of removing 1,125 cubic inches in a minute, because I think we could probably build entire houses out of solid steel with a tool that quick.
Nathan Stanley Wed, Nov 17, 2021 8:59 PM
1. A face milling operation is performed on the top surface of a steel rectangular workpiece...
2.(USCS units) A face milling operation is performed on the top surface of a steel block that is 12.0 in long by 3.0 in wide by 2.5 in thick. The milling cutter follows a path that is centered over the width of the block. It has five teeth and a 3.0 in diameter. Cutting speed-250 ft/min, feed- 0.006 in/tooth, and depth of cut -0.150 in. Determine (a) machining time and (b) maximum removal rate during the cut. (c) If an...
answer a) is 1.35 and b) 7.16 i want the answer for c Problem #4 A slab milling operation is performed on the top surface of a steel rectangular workpiece 12.0 in fong by 2.5 in wide. The helical milling cutter, which has a 3.0 in diameter and ten teeth, is set up to overhang the width of the part on both sides. Cutting speed is 125 ft/min, feed is 0.006 in/tooth, and depth of cut - 0.300 in.? Determine...
A face milling operation removes 4.0 mm from the top surface of a rectangular piece of aluminum that is 200 mm long by 60 mm wide by 75 mm thick. The cutter follows a path that is centered over the workpiece. It has four teeth and is 100 mm in diameter. Cutting speed = 2.5 m/s, and chip load = 0.27 mm/tooth. Determine (a) maximum metal removal rate during cutting in mm3/seconds (b) machining time in seconds. Cutter position at...
A face-milling operation is being carried out on a 320-mm-long, 110-mm-wide, 50-mm thick annealed mild- steel block. The cutter follows a path that is centred over the workpiece and is applied on the top surface where it reduces the part thickness into 44mm. It has four teeth and is 150 mm in diameter. Cutting speed = 132 m/min, and chip load = 0.23 mm/tooth. Determine: Maximum metal removal rate during milling metal removal rate = _______________ ( ) Machining time...
Industrial Manufacturing Process 5. A face milling operation is used to machine 5 mm from the top surface of a rectangular piece of aluminum 400 mm long by 100 mm wide. The cutter has four teeth (cemented carbide inserts) and is 150 mm in diameter. Cutting conditions are: v- 3 m/s, f 0.27 mm/tooth, and d 5.0 mm. Determine: (a) time to make one pass across the surface, and (b) metal removal rate during cutting.
A slab-milling operation is being carried out on a block on a 200 mm-long, 150 mm-wide annealed mild steel block at a feed f= 0.20 mm/tooth and depth of cut d= 2.5 mm. The cutter is D= 45 mm in diameter, has 20 straight teeth, rotates at N=110 rpm and by the definition, is wider than the block to be machined. Calculate ; I.material-removal, II.estimate the power and torque required for this operation, III.calculate the cutting time
A slab-milling operation is carried out on a 200 mm long, 80-mm-wide annealed mild-steel workpiece having a feedrate of 0.1 mm/tooth and a depth of cut of 4.0 mm. The cutter of 50 mm diameter has 18 straight teeth and rotates at 135 rpm. The given specific energy for this material is 3.5 W s/mm3 and the slab mill is wider than the workpiece to be machined. Calculate: ‧ the material-removal rate; ‧ the power and torque required for this...
A Face Milling Operation on machine steel plate is performed with a 2" diameter (D) cutter (High Speed Steel) of 6 tecth. Using Cutting speed of steel (CS) and Chip load per tooth (Feed) from lab manual table Length (L): 6 inch Determine Time to cross the plate in seconds (Tm) Spindle 2 inches 6 inches
Consider the face milling of a workpiece on a milling machine with a vertical spindle. The length and the width of the part are 7 in and 1 in respectively. Tool diameter is 3 in. The number of the installed inserts was 10. Feed per tooth is 0.003 in/tooth. Cutting speed is 600 ft/min. Depth of cut is 0.1 in. Specific energy is 2 hp.min/in3. a) Find the machining time? b) Calculate the MRR c) What would be the required...
Page 10 of 11 15 points A block of nickel alloy, 50 cm long and 20 cm wide, is machined with slab-milling process at a feed rate of 0.025 cm/tooth and a depth of cut of 3.2 mm. The cutter has eight (8) straight cutting teeth, a diameter of 6.5 mm and rotates at 150 rpm. The specific energy of the workpiece (nickel alloy) is 113 W- min/cm3. Calculate The material removal rate. b) The power required, and The cutting...
> This is incorrect. Imagine how ludicrous 1,125 cubic inches per minute is. That's like removing a 10.4x10.4x10.4 in cube of steel worth of material in a MINUTE. Do not use this calculation method.
Nathan Stanley Wed, Nov 17, 2021 8:57 PM