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A 150 mm diameter slab-milling cutter has 10 teeth and is used at a feed speed...
A slab-milling operation is being carried out on a block on a 200 mm-long, 150 mm-wide...
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 workpiec...
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...
Industrial Manufacturing Process 5. A face milling operation is used to machine 5 mm from the...
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 face-milling operation is being carried out on a 320-mm-long, 110-mm-wide, 50-mm thick annealed mild- steel...
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...
A face milling operation removes 4.0 mm from the top surface of a rectangular piece of...
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...
Page 10 of 11 15 points A block of nickel alloy, 50 cm long and 20...
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...
PART 3: OPTIONAL PROBLEMS Vertical milling is used to machine the whole surface (20 x 150...
PART 3: OPTIONAL PROBLEMS Vertical milling is used to machine the whole surface (20 x 150 mm) of an aluminum block. The feed is along the longest length of the part. Use SI units for all your work. Tool: ø12.7 mm (ø0.500 in), 30 mm (1.181 in) long, 4 inserts Workpiece: 20 x 150 x 10 mm height (0.78 x 5.900 x 0.390 in height) a) Sketch the set up and list relevant information. Show any motion with an arrow....
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 s...
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...
02: A bar of 60 mm diameter and length of 3 meter is used to produce 500 pieces on a center lathe having the follow...
02: A bar of 60 mm diameter and length of 3 meter is used to produce 500 pieces on a center lathe having the following characteristics: . Maximum rotational speed .Minimum rotational speed .Number of speeds Lathe overall efficiency The turning process is performed at 40 m/min cutting velocity. 0.5 mm/rev longitudinal feed, 0.25 mm/rev transverse feed and 2 mm depth of cut REQUIRED 1. Calculate the TWELVE rotational speeds in rpm. 2. What rotational speed would you choose? 3....
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the...
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the characteristics of each group. Aid your answer with hierarchy. (10 marles) 1) Sand casting is a process for casting metal in sand molds. Explain FIVE (3) sand casting benefits to the industry (marks) Riser, also known as feeder, is an important part in a sand mold. Briefly describe the function of a riser in a sand casting mold Hence, illustrate the possible types and...
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 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...
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...
PART 3: OPTIONAL PROBLEMS Vertical milling is used to machine the whole surface (20 x 150 mm) of an aluminum block. The feed is along the longest length of the part. Use SI units for all your work. Tool: ø12.7 mm (ø0.500 in), 30 mm (1.181 in) long, 4 inserts Workpiece: 20 x 150 x 10 mm height (0.78 x 5.900 x 0.390 in height) a) Sketch the set up and list relevant information. Show any motion with an arrow....
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...
02: A bar of 60 mm diameter and length of 3 meter is used to produce 500 pieces on a center lathe having the following characteristics: . Maximum rotational speed .Minimum rotational speed .Number of speeds Lathe overall efficiency The turning process is performed at 40 m/min cutting velocity. 0.5 mm/rev longitudinal feed, 0.25 mm/rev transverse feed and 2 mm depth of cut REQUIRED 1. Calculate the TWELVE rotational speeds in rpm. 2. What rotational speed would you choose? 3....
Question 1 2) Manufacturing processes can be classified into 2 (Two) major groups. Briefly describe the characteristics of each group. Aid your answer with hierarchy. (10 marles) 1) Sand casting is a process for casting metal in sand molds. Explain FIVE (3) sand casting benefits to the industry (marks) Riser, also known as feeder, is an important part in a sand mold. Briefly describe the function of a riser in a sand casting mold Hence, illustrate the possible types and...
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