Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 33, Problem 37QLP
To determine
It is observed that the coefficient of friction between the carriage and the ways on a lathe is 0.35. To reduce friction and wet the surfaces, kerosene (a very low viscosity fluid) is applied to the interface. Instead of reducing the friction, it is now measured to be 0.38. Provide an explanation for these results.
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Chapter 33 Solutions
Manufacturing Engineering & Technology
Ch. 33 - What is tribology?Ch. 33 - Explain what is meant by (a) surface texture and...Ch. 33 - List and explain the types of defects typically...Ch. 33 - Define the terms (a) roughness, and (b) waviness.Ch. 33 - Explain why the results from a profilometer are...Ch. 33 - Prob. 6RQCh. 33 - List the types of wear generally observed in...Ch. 33 - Define the terms wear, friction, and lubricant.Ch. 33 - How can adhesive wear be reduced? Abrasive wear?Ch. 33 - Prob. 10RQ
Ch. 33 - Explain the functions of a lubricant in...Ch. 33 - Prob. 12RQCh. 33 - Prob. 13RQCh. 33 - Describe the factors involved in lubricant...Ch. 33 - Prob. 15RQCh. 33 - Prob. 16QLPCh. 33 - Explain the significance of the fact that the...Ch. 33 - Prob. 18QLPCh. 33 - Explain why identical surface-roughness values do...Ch. 33 - Prob. 20QLPCh. 33 - Prob. 21QLPCh. 33 - Prob. 22QLPCh. 33 - Prob. 23QLPCh. 33 - Comment on the surface roughness of various parts...Ch. 33 - Prob. 25QLPCh. 33 - Do the same as for Problem 33.25, but for surface...Ch. 33 - Describe your observations regarding Fig. 33.7.Ch. 33 - Give the reasons that an originally round specimen...Ch. 33 - Prob. 29QLPCh. 33 - Explain the reason that the abrasive-wear...Ch. 33 - Prob. 31QLPCh. 33 - List the similarities and differences between...Ch. 33 - Explain why the types of wear shown in Fig. 33.11...Ch. 33 - List the requirements of a lubricant.Ch. 33 - List manufacturing operations in which high...Ch. 33 - List manufacturing operations in which high wear...Ch. 33 - Prob. 37QLPCh. 33 - Prob. 38QTPCh. 33 - A surface with a triangular sawtooth roughness...Ch. 33 - List the steps you would follow if you wished to...Ch. 33 - Discuss the tribological differences between...Ch. 33 - Section 33.2 listed major surface defects. How...Ch. 33 - Describe your own thoughts regarding biological...Ch. 33 - Prob. 48SDPCh. 33 - Prob. 49SDPCh. 33 - Prob. 50SDPCh. 33 - Describe your thoughts on the desirability of...
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- The length of the inserted leg is (500) mm, the length of each step in it is (1) mm, and the length of the vernier scale (98 mm) Divided into (50) sections, how accurate is it?arrow_forwardI don't know much about frictionarrow_forwardFRICTION Research about friction. Provide a hand written research work. Include diagrams, tables, graphs and/or charts if necessary. Include all equations involved in the topic. The specific topics are enumerated below: 1. DEFINITION AND THEORY OF FRICTION 2. ANGLE OF FRICTION 3. LAWS OF FRICTIONarrow_forward
- Explain in detail the different types of friction?arrow_forwardDesign a method for measuring the friction between a rubber seal and a syringe. (please bold answer)arrow_forwardOBSERVATIONS 1. Differentiate between static and kinetic friction. 2. Differentiate between rolling and sliding friction. 3. For which combination of materials, the coefficient of static friction is lower? Why? 4. Always rolling friction is greater that sliding friction. True/False CONCLUSIONarrow_forward
- a work piece, which is laying on the surface plate of a vertical turning machine, has its center of gravity 300mm away from the rotation axis. you need to calculate the machine's rotational frequency n at which the work piece starts to slide, if there is a coefficient of static friction of 0.15arrow_forwardQ1: How do your results for μs and μk compare to literature values for dry metal on plastic? Cite what you compared to. Do they agree with the literature within error? If not, discuss any systematics that could have contributed to the discrepancy. Q2: Is the force of static friction constant as the incline rises? Explain your answer. My Us value is 0.4452, and Uk value is 0.33arrow_forwardA turning machining experiment was performed at the UCSI University's Mechanical Engineering workshop using a lathe machine with palm oil as lubricant. It was observed that during the entire machining, the technician set cutting tool perpendicular to the direction of tool motion. A further investigation revealed that the tool rake angle was 25° while the dynamometer results' analysis showed that the frictional force and the normal force to the friction was 5 kN and 25 kN respectively. Analyze how the chip thickness will be affected if the machining is performed without any lubricant and the frictional force is increased by 100 %. Assume that, all other parameters were kept constant during the entire operation for both machining with lubricant and the dry machining process.arrow_forward
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