Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 39, Problem 22QLP
Give an example of a push system and of a pull system. Indicate the fundamental difference between the two methods.
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Example 3:
A double acting cylinder is used to transfer
work-pieces in a production machine. Both the
extend and retract forces needed is 3500N.
Determine the piston size(diameter) of the
cylinder if the rod diameter used is 15mm and
the pressure used is 6bar. Assume frictional
force is 10% of theoretical force.
What general trend did you observe from set-ups 3? Support your answer by using the data gathered.
A 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.
Chapter 39 Solutions
Manufacturing Engineering & Technology
Ch. 39 - What is a manufacturing cell? Why was it...Ch. 39 - Describe the basic principle of flexible...Ch. 39 - Why is a flexible manufacturing system capable...Ch. 39 - What are the benefits of just-in-time production?...Ch. 39 - Prob. 5RQCh. 39 - What is an expert system?Ch. 39 - What are the advantages of a communications...Ch. 39 - What is MTConnect?Ch. 39 - What is a WLAN? a PAN?Ch. 39 - Describe your understanding of holonic...
Ch. 39 - What is Kanban? Explain.Ch. 39 - What is lean manufacturing?Ch. 39 - What is a push system?Ch. 39 - In the lean manufacturing concept, what is the...Ch. 39 - Prob. 15RQCh. 39 - In what ways have computers had an impact...Ch. 39 - What advantages are there in viewing...Ch. 39 - One restaurant makes sandwiches as they are...Ch. 39 - Discuss the benefits of computer-integrated...Ch. 39 - (a) Why is just-in-time production required in...Ch. 39 - Prob. 21QLPCh. 39 - Give an example of a push system and of a pull...Ch. 39 - What is fuzzy logic? Give three examples where...Ch. 39 - What are the advantages to having level...Ch. 39 - Is there a minimum to the number of machines in...Ch. 39 - Are robots always a component of an FMC? Explain.Ch. 39 - Are there any disadvantages to zero...Ch. 39 - Review Table 36.1 and identify the points that...Ch. 39 - Give examples in manufacturing processes and...Ch. 39 - What types of (a) products and (b) production...Ch. 39 - Describe your opinions concerning the...Ch. 39 - Can a factory ever be completely untended?...Ch. 39 - Assume that you own a manufacturing company andyou...Ch. 39 - How would you describe the benefits of FMS to an...Ch. 39 - Artificial neural networks are particularly useful...Ch. 39 - Prob. 37SDPCh. 39 - Evaluate a process from a lean-production...Ch. 39 - Pull can be achieved by working with one supplier...Ch. 39 - Prob. 40SDP
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- What factors the linker considers while deciding between these two apparently similar processes?arrow_forwardDefine lever, and explain how a lever operating at a mechanical advantage differs from one operating at a mechanical disadvantage.arrow_forwardExample 2: A clamping vice uses a single acting cylinder to clamp the work-pieces. Determine the extend force if the piston diameter of the cylinder is 80mm, rod diameter 15mm and the pressure used is 6bar. Assume frictional and spring forces are 10% and 15% of theoretical force respectively.arrow_forward
- give examples of non conservative forcearrow_forwardAnalyze the pneumatic problem and design direct and indirect pneumatic circuit diagram with explanation of working Metal sheets are to be formed using a single-acting cylinder. The process will start upon pressing a push button. As long as the push button is activated, the cylinder is to remain in the pressed position. Upon release of the push button the cylinder is to retract. Positional Sketch:arrow_forwardSketch a typical arrangement of a mechanism of quick return shaping action of power transmission from input of a shaping machine to the output of the tool.arrow_forward
- Force Calculation Example 1: A double acting cylinder is used to transfer work-pieces in a production machine. Determine the extend and retract forces if the piston diameter of the cylinder is 80mm, rod diameter 15mm and the pressure used is 6bar. Assume frictional force is 10% of theoretical force.arrow_forwardPbm1)A plate clutch having a single driving plate with contact surfaces on each side is required to transmit power. The outer diameter of the contact surfaces is to be 300 mm. The inner diameter is 150 mm. The coefficient of friction is 0.4. (a) Assuming a uniform pressure of 0.17 N/mm²; determine the torque transmitted by the clutch drive and also Power at speed of 1250 rpm. Given data:arrow_forwardSite an example of eccentrics and describe its function. NOTE: An eccentric is a shaft that may have two or more turned diameters parallel to each other, but not concentric with the normal axis of work. Eccentrics are used in locking devices, in the feed mechanism on some shapers, and in the crankshaft of an automobile, etc., where it is necessary to convert rotary motion into reciprocating motion, or vice versa.arrow_forward
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