Want neat and clean solutions Two tools A and B have signatures5° - 5° - 6° - 6°10°45° - 0 and5° - 6° - 7° - 8°12° -15°0 (both ASA)respectively. They are used to turn components with feed of tool A as twice of feed of toolB. If h, and hp denote the peak-to-valley heights of surfaces produced by the tools A and B,B.then the ratio of h/hp will be

Answered: Image /qna-images/answer/d0202536-abea-428a-a6cb-1c550f753014.jpg

Answered: 60 10° 45° - 0

Engineering

Mechanical Engineering

60 10° 45° - 0

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter8: Computer Numerical Control

Section8.6: Cnc Milling: Programming

Problem 8RQ: Briefly describe the use of I and J for the arc center method of circular interpolation.

See similar textbooks

Similar questions

Do fast
In crank and slotted lever quick return mechanism, the crank length is (100 +X )mm and the distance between the fixed center is (225+X)mm. The length of the slotted lever is (525+X)mm. Determine the ration of time of cutting stroke to time of return stroke. Also calculate the length of the stroke . Note where X is two digit number made from the last two digit of the registration number of the students For example if the reg. no. of the student is 11912081 then X=81 and crank length is 80+81=161mm Draw the neat and clean diagram with proper scale. Rough drawings will not be considered
Program the motion of cutting tool from point 1 to point 2 according scheme below, in absolute programing for CNC lathe, using the radius programming. X 14,6 돼 56,7 N! Ø18,8
QUESTION 5 Determine the spindle speed (rpm), the feed rate (in/min) and the cutting power required for turning a 1º diameter copper rod with a depth of cut of 0.1" using a cemented carbide tool. O N=287 RPM, F-25.8 in/min, P=9.7 hp ON=2866 RPM, F=258 in/min, P=97 hp ON=1146 RPM, F-25.8 in/min, P=97 hp O N= 11460 RPM, F-340 in/min, P=130 hp ON= 1146 RPM, F-34 inimin, P= 13 hp ON= 115 RPM, F-3.4 in/min, P=1.3 hp QUESTION 6 It is required to face mill an aluminum block to size it down from 2" to 1.5" thick using a 3" diameter 2-toothed carbide cutting tool. The block is 6.0" wide and 6" long. The entire tool diameter engages the workpiece during the cut. Calculate the recommended spindle speed in revolutions per minute, feed per tooth, and cutting power required. O N=1529 RPM, f= 0.026 in/rev/tooth, P = 36 hp O N-3820 RPM, f= 26 in/revitooth, P=27 hp O N-3820 RPM, f= 0.052 in/rew/tooth, P=27 hp ON-382 RPM, F= 0.026 in/revitooth, P = 0.027 hp O N-3820 RPM, f= 0.052 in/rev/tooth, P=2.7 hp…
In milling operation, the cutting speed is 150 m/min with a tool of 12 mm diameter. What is the right spindle speed rpm for this operation? (Choose the most close to your calculated value) 4500 O 3980 3700 4200
Solve first Question Only.
Q1. The part shown below will be turned in two machining steps. In the first step a length of (50 + 50) = 100 mm will be reduced from Ø100 mm to Ø80 mm and in the second step a length of 50 mm will be reduced from Ø80 mm to Ø60 mm. Calculate the required total machining time T with the following cutting conditions: Cutting speed V=80 m/min, Feed is f=0.8 mm/rev, Depth of cut 3 mm per pass. Ø100 Ø80 Ø60 50 50
Q2) In a crank and slotted lever quick return mechanism, as shown in the figure, the driving crank length is 75 mm. The distance between the fixed centers is 200 mm and the length of the slotted lever is 500 mm. Determine the angles a, ß, the effective stroke, and find the ratio of the times taken on the cutting and idle strokes. Also draw the diagram, show all details and all extreme positions. 150 200 R P 500 To is obsos + 룸 500 Juis Sis (738-06)
Figure and table given below shows the design details of a taper turning operation with a cutting speed of 22 m/ minute, feed 0.2 mm/ revolution; Depth of cut of 0.5 mm. Using the given data find the following . (e) Time for single pass "Tfinal" in minutes
1. If a machinist wanted to drill a % inch hole in a piece of machine steel using a high speed steel drill. At what speed in revolutions per minute should he operate the drill press? 2. Find the revolutions per minute of an 8 mm drill if it is used to cut an aluminum workpiece using a high carbon steel drill. 3. The rpm setting of the drill press is set to 600 rpm. What is the maximum diameter in inches of a high speed drill if it is used to drill a tool steel material? 4. A drill press has the following rpm settings; 350, 600, 1100, & 1600. What rpm setting must be used if a 15 mm high speed steel drill is used to cut brass workpiece? 5. A machine operator drills a hole of a 3/8 inch diameter to a stainless steel using a carbon steel drill. He sets the drill press rpm setting to 900 rpm. Is he operating at correct setting? If not, then what must be the correct rpm setting considering that the machine has the following rpm settings of 300, 600, 900, 1200, and 1800?
Solve First one Only
The outline of the part in figure below is to be profile milled, using a 20 mm diameter end mill with two teeth. The part is 10 mm thick. Cutting speed =125 m/min and feed = 0.10 mm/rev. Use the lower left comer of the part as the origin in the x-y axis system. The two holes in the part have already been drilled and will be used for clamping the part during milling, Write the part program in the APT format.