For a turning of a hot rolled free machining steel with BHN=200, you have selected a...
For a turning of a hot rolled free machining steel with BHN=200, you have selected a high-speed steel (HSS) tool and a depth of cut of 0.150 in. The diameter of the workpiece is 2.00 in.
(a) What speed and feed would you select for this job?
(b) Using a speed of 115 sfpm and the feed of 0.015 ipr, calculate the spindle RPM for this operation.
(c) Calculate the metal removal rate MMR.
(d) Calculate the cutting time for the operation with a length of cut of 5.00 inches and 0.1 inch allowance.
Homework Answers
Please provide your valuable feedback by a thumbsup. Your thumbsup is a result of our efforts. Thanks in advance
Add Answer to:
For a turning of a hot rolled free machining steel with
BHN=200, you have selected a...
Problem la: A volume of 10 in. long, 5 in. wide and 0.5 in. thick is...
Problem la: A volume of 10 in. long, 5 in. wide and 0.5 in. thick is to be removed by a face milling cutter. The cutter is 3 in diameter and has a six teeth. The maximum depth of cut is 0.3 in. Assume feed -0.1 ipr and cutting speed - 200 fpm. What are the feed speed, spindle rpm and cutting time? Problem 1b: 0.95 The cutting force for turning a stainless-steel shaft using HSS tool can be predicted...
0.95 Problem 1b: The cutting force for turning a stainless-steel shaft using HSS tool can be...
0.95 Problem 1b: The cutting force for turning a stainless-steel shaft using HSS tool can be predicted as Fe = 150,000 £9.50 ap The recommended speed is 200 fpm and the feed is 0.03 ipr. The diameter of the workpiece is 3 inches and the final diameter is 2.8 in. The part is 4 in. long. A 10 hp motor is used to drive the machine, which has an efficiency of 0.85. What is the maximum depth of cut, based...
Fundamentals of Mechanical Manufacturing Technology: Exercise5 Material-removal Rate The rate (MRR) in turning is the volume...
Fundamentals of Mechanical Manufacturing Technology: Exercise5 Material-removal Rate The rate (MRR) in turning is the volume of material removed per unit time, with the units of m/min De + D t also can be written as MRR = drv Do: Orignal diameter of workpiece,mm Dr: Final diameter of workpiece, mm Davg: Average diameter of workpiece, mm d: Depth of cut, mm f: Feed, mm/rev 4feed rate ofdf-㈢ )-mm, the distance traveled is l mn, the cutting time is Eq. (2)...
A 3.00 inch diameter workpiece that is 25 in long is to be turned down to...
A 3.00 inch diameter workpiece that is 25 in long is to be turned down to n2.384 inches. Process Specifications: a) Cutting Speed (V) = 300 ft/min, b) Feed (f) = 0.015 in/rev c) Depth of cut (d) = 0.044 in The bar will be held in a chuck and supported on the opposite end in a live center. With this work-holding setup, one end (15 inches) must be turned to diameter; then the bar must be reversed to turn...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01 inch in 1 minute of cur while cylindrically turning on a lathe a copper cylinder of 2 inch diameter and sinch long with a workpiece rotational speed 200 rpm and a tool feed rate of 0.01 inch per each rotation of the workpiece and a depth of cut 0.1 inch per pass. When only the workpiece rotational speed is increased to 300 rpm (and...
Q9: What would the RPM be if we were turning a 375 diameter workpiece made out...
Q9: What would the RPM be if we were turning a 375 diameter workpiece made out of mild steel on the lathe? Q10: What materials are used as the cutting tools of milling machine? Q11: What would the RPM be if we were turning a 1.00" diameter work piece made out of mild steel, using HSS cutting tool? Q12: What would the RPM be if we were turning a 1.00" diameter work piece made out of mild steel, using Carbide...
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...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial height. Calculate the three true (log) strains (axial, radial, circumferential) and the total effective true strain (von Mises strain) (10 points) Machining: In a cylindrical turning operation on a horizontal engine lathe we have the following data: Work diameter: 1 inch, Work length: 3 inches, spindle speed: 200 rpm, tool feed rate: 0.01inch/rev., depth of cut per pass: 0.2 inch, ultimate shear strength (USS)...
1. A face milling operation is performed on the top surface of a steel rectangular workpiece...
1. A face milling operation is performed on the top surface of a steel rectangular workpiece 12.0 in long by 2.5 in wide. The milling cutter follows a path that is centered over the workpiece. 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) the actual cutting time to make one pass across the surface and (b) the maximum metal removal rate...
.Suppose you want to drill a 2-in. thick plate of cast steel (0.4%C), 4-in. diameter hole....
.Suppose you want to drill a 2-in. thick plate of cast steel (0.4%C), 4-in. diameter hole. An indexable HSS insert drill has been selected. Consider the table below, select the appropriate cutting speed, feed rate. Calculate the spindle speed (rpm), the feed rate (in/min), the MRR, and cutting time. Assume the cutting process will be performed in3 steps using 3 drills sizes in sequence 1”, then 2”, then 4”. Calculate the cutting total cutting time, considering a proper allowance each...
Problem la: A volume of 10 in. long, 5 in. wide and 0.5 in. thick is to be removed by a face milling cutter. The cutter is 3 in diameter and has a six teeth. The maximum depth of cut is 0.3 in. Assume feed -0.1 ipr and cutting speed - 200 fpm. What are the feed speed, spindle rpm and cutting time? Problem 1b: 0.95 The cutting force for turning a stainless-steel shaft using HSS tool can be predicted...
0.95 Problem 1b: The cutting force for turning a stainless-steel shaft using HSS tool can be predicted as Fe = 150,000 £9.50 ap The recommended speed is 200 fpm and the feed is 0.03 ipr. The diameter of the workpiece is 3 inches and the final diameter is 2.8 in. The part is 4 in. long. A 10 hp motor is used to drive the machine, which has an efficiency of 0.85. What is the maximum depth of cut, based...
Fundamentals of Mechanical Manufacturing Technology: Exercise5 Material-removal Rate The rate (MRR) in turning is the volume of material removed per unit time, with the units of m/min De + D t also can be written as MRR = drv Do: Orignal diameter of workpiece,mm Dr: Final diameter of workpiece, mm Davg: Average diameter of workpiece, mm d: Depth of cut, mm f: Feed, mm/rev 4feed rate ofdf-㈢ )-mm, the distance traveled is l mn, the cutting time is Eq. (2)...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01 inch in 1 minute of cur while cylindrically turning on a lathe a copper cylinder of 2 inch diameter and sinch long with a workpiece rotational speed 200 rpm and a tool feed rate of 0.01 inch per each rotation of the workpiece and a depth of cut 0.1 inch per pass. When only the workpiece rotational speed is increased to 300 rpm (and...
Q9: What would the RPM be if we were turning a 375 diameter workpiece made out of mild steel on the lathe? Q10: What materials are used as the cutting tools of milling machine? Q11: What would the RPM be if we were turning a 1.00" diameter work piece made out of mild steel, using HSS cutting tool? Q12: What would the RPM be if we were turning a 1.00" diameter work piece made out of mild steel, using Carbide...
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...
Materials Forming: A solid cylinder of uniform circular cross-section is compressed axi-symmetrically to half its initial height. Calculate the three true (log) strains (axial, radial, circumferential) and the total effective true strain (von Mises strain) (10 points) Machining: In a cylindrical turning operation on a horizontal engine lathe we have the following data: Work diameter: 1 inch, Work length: 3 inches, spindle speed: 200 rpm, tool feed rate: 0.01inch/rev., depth of cut per pass: 0.2 inch, ultimate shear strength (USS)...
1. A face milling operation is performed on the top surface of a steel rectangular workpiece 12.0 in long by 2.5 in wide. The milling cutter follows a path that is centered over the workpiece. 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) the actual cutting time to make one pass across the surface and (b) the maximum metal removal rate...
Most questions answered within 3 hours.
-
1. True or false: According to the Gordon Growth Model, firms
that pay dividends will always...
asked 21 minutes ago -
20
Lansing Corporation reported net income of $67 million for last
year. Depreciation expense totaled $15...
asked 45 minutes ago -
Write a MATLAB userdefined function that calculates the product and
the ratio of two variables x...
asked 47 minutes ago -
Timia needs some cash in a hurry. She owns her car outright and
is considering a...
asked 45 minutes ago -
A sweepstakes posted the probabilities of winning each prize and
the prize amounts as shown in...
asked 47 minutes ago -
Synthesis of fructose-2,6-bisphosphate is catalyzed by a
bifunctional enzyme that contains two catalytic domains: PFK2
(kinase...
asked 1 hour ago -
observation
initial burst volume
total volume titrated to reach end point
what happened to the rise...
asked 1 hour ago -
Let x1, x2,x3,and x4 be a random sample from
population with normal distribution with mean ?...
asked 1 hour ago -
A string of mass m and length L is under tension T. The speed of
a...
asked 1 hour ago -
Look at the descriptions of high sensation seekers in your book.
They look like they would...
asked 1 hour ago -
Write a method called is1to1 that accepts a map whose keys and
values are strings as...
asked 1 hour ago -
In a study of self-medication, a simple random sample of 1230
adults completed a survey. The...
asked 1 hour ago