Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 37, Problem 38QTP
Disassemble a simple ballpoint pen. Carefully measure the time it took for you to reassemble the pen, and calculate the assembly efficiency. Repeat the exercise for a
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An articulated robot loads and unloads a CNC machine tool. The cell is scheduled to produce abatch of 300 parts. Setting up the cell for this part style takes 30 min, programming the robot takes75 min, and programming the CNC machine tool takes 55 min. For safety reasons, these threesetup activities must be done sequentially. The programmed machining cycle takes 3.75 min.Cutting tools wear out and must be periodically changed, which takes 6.0 min every 20 cycles andis performed by a human worker. At the end of each machining cycle, the robot reaches into themachine and removes the just-completed part, places it in a parts storage carousel, then reachesfor a starting work part from the same carousel and places it in the machine tool fixture. Thissequence of handling activities takes 45 sec. The storage carousel holds 25 parts. At the beginningof the production run, it is full of raw work parts. As each part is retrieved by the robot, the carouselindexes one position to present a new raw…
Homework 2: It was found in a cylindrical turning of a circular shaft with a diameter of 24 mm that the life
of the turning stylus was 9 minutes when the rotational speed was 300 rpm and with the use of several HSS. When
turning the same shaft at a rotational speed of 250 rpm, the life of the pen increased to 48.5 minutes. Find
the life of the pen when the rotational speed becomes rpm 280
Use brief sentences, sketches or calculations to answer the following questions:
Chapter 37 Solutions
Manufacturing Engineering & Technology
Ch. 37 - Describe the differences between mechanization...Ch. 37 - Explain the difference between hard and soft...Ch. 37 - Prob. 3RQCh. 37 - Explain the difference between a flexible...Ch. 37 - Describe the principle of numerical control of...Ch. 37 - Explain open-loop and closed-loop control...Ch. 37 - Describe the principle and purposes of adaptive...Ch. 37 - What factors have led to the development of...Ch. 37 - What is a point-to-point control system? How is...Ch. 37 - Describe the features of an industrial robot. Why...
Ch. 37 - List and describe the principles of various types...Ch. 37 - Describe the concept of design for assembly. Why...Ch. 37 - Is it possible to have partial automation in...Ch. 37 - Explain the advantages of flexible fixturing.Ch. 37 - How are robots programmed to follow a certain...Ch. 37 - What kind of end effectors are available for...Ch. 37 - (a) Why is automation generally regarded as...Ch. 37 - Are there activities in manufacturing operations...Ch. 37 - What is a programmable logic controller? Why...Ch. 37 - Explain the factors that have led to the...Ch. 37 - Prob. 21QLPCh. 37 - Prob. 22QLPCh. 37 - Discuss methods of online gaging of workpiece...Ch. 37 - Are drilling and punching the only applications...Ch. 37 - Prob. 25QLPCh. 37 - Prob. 26QLPCh. 37 - Describe situations in which the shape and size of...Ch. 37 - Explain the difference between an automated...Ch. 37 - Explain why sensors have become so essential in...Ch. 37 - Prob. 30QLPCh. 37 - Prob. 31QLPCh. 37 - What is meant by the term sensor fusion?Ch. 37 - Prob. 33QLPCh. 37 - Prob. 34QLPCh. 37 - Prob. 35QLPCh. 37 - Prob. 36QLPCh. 37 - Prob. 37QTPCh. 37 - Disassemble a simple ballpoint pen. Carefully...Ch. 37 - Examine Fig. 37.11b, and obtain an expression for...Ch. 37 - Refer to Part III of this book, and give an...Ch. 37 - Prob. 42SDPCh. 37 - Prob. 44SDPCh. 37 - Give examples of products that are suitable for...Ch. 37 - Prob. 47SDPCh. 37 - Prob. 48SDPCh. 37 - Prob. 51SDPCh. 37 - Prob. 52SDPCh. 37 - Prob. 53SDPCh. 37 - Design a robot gripper that will pick up and place...Ch. 37 - Prob. 55SDPCh. 37 - Prob. 56SDPCh. 37 - Describe the sensors that you use in a simple act,...Ch. 37 - Prob. 58SDPCh. 37 - Prob. 59SDPCh. 37 - Conduct an Internet search and obtain product...
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- Need your help. List at least 3 proposal title for Machine Design and for Thesis 1.arrow_forwardPlease solve it complete please don't copy pastearrow_forwardA machine makes two components; call them types A and B. It takes 250 seconds to switch production between the component types. During that time, no production occurs. When in production, each unit of A or B requires 0.5 second to be completed. The two components, A and B, are combined in an assembly process to make a final product; call it C. The assembly step can combine the two components into 1 unit every 2 seconds, or 30 units per minute. Assume there is ample demand. Suppose the machine rotates between one batch of 1,000 units of A and 1,000 units of B. What is the average inventory of B components? answer:______unitsarrow_forward
- Outline and Explain the six simple machine and give examples of it usesarrow_forwardYour company decided to manufacture different types of pencils like wooden, metal bodyand Elasto-plastic body. (see the following pictures as an examples). Your manager assigned a taskto design the complete manufacturing plan for the following products:-a. Picture a is wooden type pencilsb. Picture b is metal body pencilsc. Picture c is plastic/polymer body pencilsYour design of process must start from a raw product and ends on the final finished product. Clearlywrite the method which you adopt for manufacturing purposes and its pros and cons for theseproducts. You must justify that why you are choosing this method. Also draw the sketch of your dieor mold or pattern and upload the picture in your response. Take the dimensions wisely.arrow_forwardSUBJECT - Machine shop theory What are the work holding devices used in shaper machine enumerate the following samples and explain its function.arrow_forward
- Answer the two connected questions (Task A-1 and A-2). Provided in the last part are the guides and examples: The process for large-scale manufacture of paper has been largely unchanged for the last 125 years. The pulp and paper industry today is highly capital intensive, and there is an ongoing drive towards process integration, thereby increasing the efficiency of utilization of available process resources. This paper deals with the Kraft process (see Fig. 1) though the general principles described can be extended to other pulping processes. As shown in Figure 1, five water sinks and four water sources are considered for in-plant water reuse/ recycle. Prior to water reuse/ recycle, the network requires a freshwater flow rate of 36,400 tonne/day and generates 37,186 tonne/day of wastewater (sum of the individual sink and source flow rates in Table 1). The freshwater source that is available for service has an impurity concentration (chloride content) of 4.2 ppm, which is higher than…arrow_forwardScissors are like a double-lever system. Which of the simple machines is most analogous to scissors?arrow_forwardNeed your help. List atleast 3 possible title for Machine Design and for Thesis 1arrow_forward
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