Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Textbook Question
Chapter 12, Problem 8RQ
What are some common manufactured items that may
- Receive 100% inspection?
- Receive no final inspection?
- Receive some final inspection, that is, sampling?
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Chapter 12 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 12 - Define accuracy or precision in terms of a...Ch. 12 - What does the nature of the process refer to?Ch. 12 - Suppose you have a pistol�shooting process that...Ch. 12 - Review the steps required to make a PC study of a...Ch. 12 - Why do not standard tables exist detailing the...Ch. 12 - Here are some common, everyday processes with...Ch. 12 - Why might the diameter measurements for holes...Ch. 12 - What are some common manufactured items that may...Ch. 12 - What are common reasons for sampling inspection...Ch. 12 - Fill in this table with one of the four following...
Ch. 12 - Now explain why when we sample, we cannot avoid...Ch. 12 - Which error can lead to legal action from the...Ch. 12 - Define and explain the difference between andX and...Ch. 12 - What is Cp, and why is a value of 0.80 not good?...Ch. 12 - Prob. 15RQCh. 12 - What are some of the alternatives available to you...Ch. 12 - Cpk is another process capability index. How does...Ch. 12 - In a sigma chart, are σ values for the samples...Ch. 12 - What is an assignable cause, and how is it...Ch. 12 - Why is the range used to measure variability when...Ch. 12 - How is the standard deviation of a distribution of...Ch. 12 - In the last two decades, the quality in...Ch. 12 - Figure 12.15 shows a bimodal check sheet...Ch. 12 - Control charts use upper and lower control limits....Ch. 12 - In Figure 12.10, what are the USL and the LSL,...Ch. 12 - What are four major branches (fishbones) on a...Ch. 12 - How does variation in the measuring device...Ch. 12 - What are Taguchi or factorial experiments, and how...Ch. 12 - How does the Taguchi approach differ from the...Ch. 12 - Why are Taguchi experiments so important compared...Ch. 12 - Explain what happed to improve the process inÂ...Ch. 12 - In Table 12.1, explain MOâ€�COâ€�MOO....Ch. 12 - What is a quality circle, and how might you apply...Ch. 12 - Which of the seven QC tools is being used inÂ...Ch. 12 - Go to a subway restaurant and develop a process...Ch. 12 - What do you estimate the standard deviation of...Ch. 12 - Is the dashed line in the figure labeled mean the...Ch. 12 - From the information given in the discussion and...Ch. 12 - What is the most glaring error in the figure, and...
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- why do we physically mark gauge length on the samples before the test even though the machine is measuring displacement for us.(Tensile Testing Machine) What is the effect of rate of loading, what is a soft start what is its importance?arrow_forwardThe following are non-destructive tests which are considered useful for inspecting internal defects in materials or products(Choose all that apply) Sonic waves Transmission method (ultrasonic) Electrical method (Eddy current) Pulse reflection method (ultrasonic) Magnetic particle method X-ray examinationarrow_forwardQuestion 2 1. What is a First Article Inspection and why it is needed? Explain briefly (with the help of the following drawing)the steps that you take to prepare FAI in terms of design, manufacturing, and inspection of any part First Article Inspection Requirements RAW MATERIAL DRAWINGS, STANDARDS, SPEC SHEETS SPECIAL PROCESSING REQUIREMENTS TEST SPECIFICATIONS PROCEDURES SPECIAL PROCESSES (ANODIZATION, CLEANING ETC,). RAW CONVERSION FUNCTIONAL MATERIALS PROCESSES (MACHINING, CASTING ETC.) TESTING (AL6061 T6, 301SST etc.) CERTIFICATE OF CONFORMANCE TEST CERTIFICATE OF CONFORMANCE DIMENSIONAL MEASUREMENTS RESULTS MANUFACTURING ENGINEERINGarrow_forward
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- (b) 2000 light bulbs were tested by the manufacturer. After 500 hours of testing, it was found that 5 out of all the light bulbs subjected to testing have failed. Strict quality control has been implemented to eliminate premature failures. Assume the light bulb has a constant failure rate. What is the failure rate, Mean Time Before Failure (MTBF) and the reliability of the light bulb after 500 hours? l vangarrow_forwardThe design specification on the part is that the diameter = 45.000 ± 0.150 mm. (a) What proportion of parts fall outside the tolerance limits? (b) If the process is adjusted so that its mean diameter = 45.000 mm and the standard deviation remains the same, what proportion of parts fall outside the tolerance limits?arrow_forwardQ1. (Unit 4) The tensile strength of a metal part is normally distributed with mean 40 lb and standard deviation 8 lb. If 50,000 parts are produced, a) how many would fail to meet a minimum specification limit of 34 lb tensile strength? b) How many would have a tensile strength in excess of 48 lb?arrow_forward
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