EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Chapter 27, Problem 38SDP
To determine
Describe the types of parts that would be suitable for hybrid machining. Consider one such part and make a preliminary sketch for a hybrid machine to produce that part.
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(c)
Figure 11 shows a hybrid machining process that requires two or more process
steps to produce a high-quality product, especially in the automotive industry.
i. Identify the hybrid machining process in Figure 11.
ii. Justify your selection in (i).
iii. Explain the working principle of your answer in (i).
Тool
Nozzle
Workpiece
Pulse Power
NC Table
Supply
Figure 11: Hybrid machining process
The product shown in Figure 5 is to be machined using a non-conventional
machining process. The material of this product is Silicon Nitride that can
withstand a temperature up to 450 °C.
i. Propose the appropriate process to produce the part.
ii. Justify the mechanism of the process in (i).
Figure 5: Pump impeller
Investigate the non-traditional machining methods. Describe each in your own words and sketch
out the process and appropriate scale (inches/microns etc). Then tabulate the material removal
mechanism, workpiece materials, applications, costs/speed, advantages and
limitations/disadvantages of each. The slides are for your starting point. List references, articles,
videos, etc...
Mechanical Methods
1. Water Jet Machining (WJM)
2. Abrasive Water Jet Machining (AWJM)
3. Ultrasonic Machining (USM)
Non-Mechanical Methods
1. Electrochemical Machining (ECM)
2. Electro-Discharge Machining (EDM)
3. Wire EDM
4. Laser Drilling
5.
Electron beam machining (EBM)
Chapter 27 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 27 - Describe the similarities and differences between...Ch. 27 - Name the processes involved in chemical machining....Ch. 27 - Explain the difference between chemical machining...Ch. 27 - What is the underlying principle of...Ch. 27 - Explain how the EDM process is capable of...Ch. 27 - What are the important features of the Blue Arc...Ch. 27 - What are the capabilities of wire EDM? Could this...Ch. 27 - Explain why laser Microjet has a large depth of...Ch. 27 - Describe the advantages of water-jet machining.Ch. 27 - What is the difference between photochemical...
Ch. 27 - What type of workpiece is not suitable for...Ch. 27 - What is an undercut? Why must it be considered in...Ch. 27 - Explain the principle of hybrid machining.Ch. 27 - Give technical and economic reasons that the...Ch. 27 - Why is the preshaping or premachining of parts...Ch. 27 - Explain why the mechanical properties of workpiece...Ch. 27 - Prob. 17QLPCh. 27 - Prob. 18QLPCh. 27 - Why has electrical-discharge machining become so...Ch. 27 - Prob. 20QLPCh. 27 - Which of the advanced machining processes would...Ch. 27 - Which of the processes described in require a...Ch. 27 - Describe your thoughts regarding the laser-beam...Ch. 27 - Are deburring operations still necessary for some...Ch. 27 - List and explain factors that contribute to a poor...Ch. 27 - What is the purpose of the abrasives in...Ch. 27 - Which of the processes described in this chapter...Ch. 27 - Is kerf width important in wire EDM? Explain.Ch. 27 - Comment on your observations regarding Fig. 27.4.Ch. 27 - Why may different advanced machining processes...Ch. 27 - A 200-mm-deep hole that is 30 mm in diameter is...Ch. 27 - If the operation in Problem 27.31 were performed...Ch. 27 - A cutting-off operation is being performed with a...Ch. 27 - A 0.80-in.-thick copper plate is being machined by...Ch. 27 - Explain why it is difficult to produce sharp...Ch. 27 - Make a list of the processes described in this...Ch. 27 - Would the processes described in this chapter be...Ch. 27 - Prob. 38SDPCh. 27 - Describe your thoughts as to whether the...Ch. 27 - Make a list of machining processes that may be...Ch. 27 - At what stage is the abrasive in abrasive...Ch. 27 - Describe the similarities and differences among...Ch. 27 - Describe the similarities and differences among...Ch. 27 - Describe any workpiece size limitations in...Ch. 27 - Suggest several design applications for the types...Ch. 27 - Based on the topics covered in Parts III and IV,...Ch. 27 - Review Example 27.1 and explain the relevant...Ch. 27 - Precision engineering is a term that is used to...Ch. 27 - With appropriate sketches, describe the principles...Ch. 27 - Make a table of the process capabilities of the...Ch. 27 - One of the general concerns regarding advanced...Ch. 27 - It can be seen that several of the processes...
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- What is CNC Machining? Definition, Processes and Components.arrow_forwardDifferentiate between single point, multipoint and form tool and Identify the ten examples of single point, multipoint and form tool.arrow_forwardA selection between advanced machining operation and conventional machine operation is to be made for mass production of 1000 parts. The part is a 20mm thick stainless steel plate and a hole of 10mm must be drilled. Calculate time required, material removal rate and feed rate for both processes to make a known decision to save production cost. The ECM process require 1000amp current with an expected efficiency of 90% whereas the conventional drilling is to be done with 8mm drill through hole. The point angle is 118°. The cutting speed is 15m/min and the feed is 0.30 mm/rev. The part handling time for ECM is 1min whereas for conventional process is 1.5min with the use of jig.arrow_forward
- Please do all ques with explanationarrow_forwardFind the machining time, in seconds, and the rate of material removing in mmA3;sec for a turning operation having the following information: 1- Wp diameter is 80mm, 2- the length is 0.12m, 3- the cutting speed is 80m/min, 4- feed i50.5 mm/rev and 5- the depth of cut is 0.002m.arrow_forwardmanufacturing technology please answer as soon as possiblearrow_forward
- Identify some of the reasons why machining is commercially and technologically important.arrow_forwardIn machining a mild steel work piece with carbide tool, the life of the tool was found to be 1 hour and 40 minutes, at a spindle speed of 30 m/min. Calculate the tool life if it has to be operated at a speed of 40% higher than the initial cutting speed. Also calculate the cutting speed if the tool is required to have a life of 2 hours and 45 minutes. Assume Taylor's exponent valuen is 0.28.arrow_forwardPLEASE SUMMARIZE IT IN YOUR WORDS!arrow_forward
- Suppose in a face milling operation, the dimensions of the workpiece are 5 inches by 10 inches. The cutter is 6 inches in diameter, has 8 teeth, and rotates at 300 rpm. The depth of cut is 0.125 inches and the feedrate is 0.005 inches / tooth. Assume that the specific power requirement for this material is 2 hp min / in3 and that only 75% of the cutter diameter is involved in cutting. Calculate (a) the required power, and (b) the material removal rate.arrow_forwardA 600mm*30mm flat surface of a plate is to be finish machined on a shaper .The plate has been fixed with 600 mm side along the tool travel direction. If the tool over-travel at each end of the plate is 20 mm, average cutting speed is 8 m/min, feed rate is 0.3 mm/stroke and the ratio of return time to cutting time of the tool is 1:2 Determine time required for machining?arrow_forwardIn nontraditional machining, which of the following processes can be used on metals only: a. Chemical engraving b. Ultrasonic machining C. None of the listed processes d. Electron beam machining е. Laser beam machiningarrow_forward
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