Precision Machining Technology
3rd Edition
ISBN: 9781337795302
Author: Peter, Hoffman.
Publisher: Cengage Learning,
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Chapter 5.4, Problem 7RQ
Determine the approximate compound-rest in-feed for cutting a 1½-12 UNF 2A thread.
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What is the lead of a double cut thread when the pitch is 2.5 mm?
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- For an internal thread, If the 3.75mm pitch and Tap drill size is 12 mm. Find the Nominal diameter. Nominal diameter in mm =arrow_forwardWhat is the benefit of using the offset tailstock method for turning tapers?arrow_forwardWhat type of thread is machined on a tapered diameter and is used to create leak-proof joints?arrow_forward
- If root diameter is 9.5 mm and major diameter is 16 mm,for an internal thread, find Pitch.arrow_forwardRefer to drawing 21A044, How many full threads will the fine tapped hole contain at minimum depth (disregard chamfer)? All abbreviations are standardarrow_forwardA ¾” – 6 external square thread is be to cut on a lathe, calculate the minor diameter of thethread.arrow_forward
- Why should the depth of cut be reduced for each pass as the thread is cut deeper?arrow_forwardDetermine the pitch diameter limits for the following threads using the Machinery's Handbook: a. -20 UNF 2B upper: ____________ lower: ____________ b. -16 UNF 3A upper: ____________ lower: ____________ c. 1-8UNC2B upper: ____________ lower: ____________ d. 1 -12 UNF 3A upper: ____________ lower: ____________arrow_forwardWhat dimension of the thread is measured by using a thread micrometer or the three-wire method?arrow_forward
- What is the pitch of a M10 x 1.25 thread?arrow_forwardCompute the lead of a 1⁄4 -20 UNC single thread.arrow_forwardIn an external thread the root diameter can be calculated by the following expression OD-2X depth mm 0.61X Pitch cm OD-2X depth cm 0.61X Pitch mm ------------ In a taper turning operation 30 is the diameter of the large end in mm, 20 is the taper angle in ° and 28 is the length of taper in mm. Find the diameter (d) of the small end in mm Diameter (d) of the small end in mm Answerarrow_forward
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