Precision Machining Technology
3rd Edition
ISBN: 9781337795302
Author: Peter, Hoffman.
Publisher: Cengage Learning,
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Textbook Question
Chapter 4.2, Problem 4RQ
Name two types of flute styles for machine reamers.____________
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Chapter 4 Solutions
Precision Machining Technology
Ch. 4.1 - Upright drill presses are available in _______ and...Ch. 4.1 - List two general types of upright drill press...Ch. 4.1 - Explain how the size of an upright drill press is...Ch. 4.1 - Briefly describe the term sensitive drill press.Ch. 4.1 - Briefly describe a gang drill press and its...Ch. 4.1 - When would a radial-arm drill press most likely be...Ch. 4.1 - Briefly describe a micro drill press and its...Ch. 4.2 - What are the two main materials used to make...Ch. 4.2 - What two types of shanks are commonly found on...Ch. 4.2 - Name three functions of the flutes on a twist...
Ch. 4.2 - Name two types of flute styles for machine...Ch. 4.2 - Prob. 5RQCh. 4.2 - What is the major difference between counterboring...Ch. 4.2 - What must be used to secure a workpiece to an...Ch. 4.2 - What devices are used to elevate a workpiece to...Ch. 4.2 - If 50 parts measuring 1" I" 3" each needed a...Ch. 4.2 - Which would be the best workholding device for...Ch. 4.2 - Which would be the best workholding device for...Ch. 4.2 - Which would be the best workholding device for...Ch. 4.3 - List five drill press safety guidelines.Ch. 4.3 - Briefly define the term cutting speed.Ch. 4.3 - What unit of measure is used to define cutting...Ch. 4.3 - What is feed, and how is feed stated for drill...Ch. 4.3 - Briefly describe two methods for locating hole...Ch. 4.3 - What is spotting and why is it performed?Ch. 4.3 - What is pecking, or peck drilling?Ch. 4.3 - Briefly contrast the speed and feed differences...Ch. 4.3 - What drill press component can be used to control...Ch. 4.3 - Calculate feed depth for a 90-degree countersink...Ch. 4.3 - Calculate feed depth for an 82-degree countersink...Ch. 4.3 - What benefit does tapping on the drill press offer...Ch. 4.3 - How many turns must a 1/4-20 tap be turned into a...Ch. 4.3 - Prob. 14RQ
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- List two general types of upright drill press heads.arrow_forwardIdentify the part of a lathe machine which is used to take the cutting forces and vibrations during the machining process. Headstock Tailstock Tool post Bedarrow_forwarda. If rough milling of mild steel is performed using High Speed Steel (HSS) side and face milling cutter of 100 mm diameter, what rpm should be used. b. If finish turning of a shaft is done to reduce its diameter from 24 mm to 20 mm using carbide tool, what rpm should be used. Metric Surface Speeds in m/min (Cutting Speed) Tool Material Aluminum Drilling Carbide 90 - 115 Milling - Rough Carbide Milling - Finish Carbide 120 - 240 Turning Carbide Rough Carbide Finish HSS HSS HSS 55 - 60 120 - 240 150 - 270 75 - 105 60 - 90 60 - 90 135 - 180 Brass 40 - 45 75 - 100 45 - 60 60 - 75 90 - 210 105 - 210 135 - 260 35 - 45 55 - 75 60 - 90 75 - 105 60 - 100 Cast Iron 12 - 18 15 - 25 25 - 30 60 - 90 75 - 135 Mild Steel 10 - 15 75 - 105 75 - 120 18 - 27 18 -3- 45 - 60 23 - 40 100 - 145 Stainless Steel 8 - 18 25 - 37 10 - 15 55 - 67 12 - 25 85 - 150arrow_forward
- State & Explain the various criteria on which shaft are designed?arrow_forwardThe operating parameters that affect the performance of a drill bit is___________ a. Weight on Bit b. Mud efficiency c. Cement properties d. Revolution per minutearrow_forwardWhat is the function of a drill bushing? In cases where a drill bushing is not used, how is the jig treated to guide the drill?arrow_forward
- With neat sketch explain the tap drill nomenclature?arrow_forwardQUESTION 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…arrow_forwardThe taper turning operation in lathe machine is carried out using__________ Compound rest Chuck Lead Screw Cross Slidearrow_forward
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