Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 22, Problem 14RQ
Why is cBN generally preferred over diamond for machining steels?
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SHEET 4 Lathes and...
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SHEET 4
Lathes and Milling operations
1- Define lath Process, why the tool should have Red Hardness Property?
2- What are the kinds of Cutting operations carried out using Lathes?
3- What are the Cutting Tools used in Shaping operation?
4- Explain some of common operation associated with drilling?
5- Define Milling Operations and what are differences between lathes and
milling machines?
6- Explain with Drawings different types of Milling operations?
7- What are the different types of Milling machines?
1. A milling operation is to be performed on a ductile cast iron shaft
to make slots for assembly. The operation will be done at high
speeds for good surface finish. For each of the following tool
materials, indicate whether it is a reasonable candidate to use in
the operation with a detailed description of why or why not
including required alloying element/grade/group etc. where
applicable:
) plain carbon steel,
(i) high-speed steel,
(ii)cemented carbide,
(iv) ceramic, and
(v) Sintered polycrystalline diamond.
After selection of material/materials discuss about
) recommended angles and tool signature
(ii) how to held cutting edge, and type of cutting fluids
With reasons for each recommended material.
1. A milling operation is to be performed on a ductile cast iron shaft to make slots for assembly. The operation will be done at high speeds for good surface finish. For each of the following tool materials, indicate whether it is a reasonable candidate to use in the operation with a detailed description of why or why not including required alloying element/grade/group etc. where applicable:
(i) plain carbon steel,
(ii) high-speed steel,
(iii) cemented carbide,
(iv) ceramic, and
(v) Sintered polycrystalline diamond.
After selection of material/materials discuss about
(i) recommended angles and tool signature
(ii) how to held cutting edge, and type of cutting fluids
With reasons for each recommended material.
2. Make a figure and explain how shear plane angle effect the power requirements in the machining. How can you reduce the power requirements during machining in orthogonal cutting?
Chapter 22 Solutions
Manufacturing Engineering & Technology
Ch. 22 - What are the major properties required of...Ch. 22 - What is the composition of a typical carbide tool?Ch. 22 - Why were cutting-tool inserts developed?Ch. 22 - Why are some tools coated? What are the common...Ch. 22 - Explain the applications and limitations of...Ch. 22 - List the major functions of cutting fluids.Ch. 22 - Why is toughness important for cutting-tool...Ch. 22 - Is the elastic modulus important for cutting-tool...Ch. 22 - Explain how cutting fluids penetrate the toolchip...Ch. 22 - List the methods by which cutting fluids are...
Ch. 22 - Describe the advantages and limitations of (a)...Ch. 22 - What is a cermet? What are its advantages?Ch. 22 - Explain the difference between M-series and...Ch. 22 - Why is cBN generally preferred over diamond for...Ch. 22 - What are the advantages to dry machining?Ch. 22 - Explain why so many different types of...Ch. 22 - Which tool-material properties are suitable for...Ch. 22 - Describe the reasons for and advantages of coating...Ch. 22 - Make a list of the alloying elements used in...Ch. 22 - As stated in Section 22.1, tool materials can have...Ch. 22 - Explain the economic impact of the trend shown in...Ch. 22 - Why does temperature have such an important effect...Ch. 22 - Ceramic and cermet cutting tools have certain...Ch. 22 - What precautions would you take in machining with...Ch. 22 - Can cutting fluids have any adverse effects in...Ch. 22 - Describe the trends you observe in Table 22.2.Ch. 22 - Why are chemical stability and inertness important...Ch. 22 - Titanium-nitride coatings on tools reduce the...Ch. 22 - Describe the necessary conditions for optimal...Ch. 22 - Negative rake angles generally are preferred for...Ch. 22 - Do you think that there is a relationship between...Ch. 22 - Make a survey of the technical literature, and...Ch. 22 - In Table 22.1, the last two properties listed...Ch. 22 - It has been stated that titanium-nitride coatings...Ch. 22 - Note in Fig. 22.1 that all tool materials,...Ch. 22 - Referring to Table 22.1, state which tool...Ch. 22 - Which of the properties listed in Table 22.1 is,...Ch. 22 - If a drill bit is intended only for woodworking...Ch. 22 - What are the consequences of a coating on a tool...Ch. 22 - Discuss the relative advantages and limitations of...Ch. 22 - Emulsion cutting fluids typically consist of 95%...Ch. 22 - List and explain the considerations involved in...Ch. 22 - Review the contents of Table 22.1. Plot several...Ch. 22 - Obtain data on the thermal properties of various...Ch. 22 - The first column in Table 22.2 shows 10 properties...Ch. 22 - Describe in detail your thoughts regarding the...Ch. 22 - One of the principal concerns with coolants is...Ch. 22 - How would you go about measuring the effectiveness...Ch. 22 - There are several types of cutting-tool materials...Ch. 22 - Assume that you are in charge of a laboratory for...Ch. 22 - Tool life could be greatly increased if an...Ch. 22 - List the concerns you would have if you needed to...
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- I need correct answer onlyarrow_forward2 2 . 13 Explain the difference between M-series and T-series high-speed steels.arrow_forwardQ3(a) Assuming you have been given the responsibility of procuring some cutting tool for UCSI workshop. Based on your knowledge in manufacturing processes, one of the major properties of interest in a cutting tool material is the hot hardness. Explain the relationship between the cost of a cutting tool and its hot hardness citing at least FOUR (4) examples of cutting tools.arrow_forward
- Define specific energy for plane strain machining (cutting). In plane-strain machỉning, the two main sources of energy dissipation are deformation along the shear plane (~70%) and friction at the tool-chip contact along the rake face (~30%). Consider machining of a rigid perfectly-plastic work material whose uniaxial yield stress is 700 MPa, and is independent of strain rate and temperature. A tool of zero-degree rake angle is employed. Measurements showed the (deformed) chip thickness to be twice that of the undeformed chip thickness. Based on the aforementioned distribution of energy, estimate the specific energy for this process.arrow_forwardmanufacturing technology please answer as soon as possiblearrow_forwardThis is a machining process for producing internal straight cylindrical surface or profiles with process characteristics and tooling similar to those for turning operations.what is this machining process? (a) Boring (b)Drilling (c)Reaming (d) Millingarrow_forward
- Which of the information given below about processing capability is wrong ?(Aşağıda işlenme kabiliyeti ile 19 - A) The machining sbility of steels contsining 0.2% Cis meximum (%0,2C içeen çelik lerin işlenme k abiliyetleri maks imumdur.) O B) S, Pand Pb thst are not normally found in steel improves machining ability. (S, P ve normalde çeliğin bünyes inde bulunmay an Pb iş lenme kabiliyetini iyileştirir.) The most important component of s teels is Fe(Çelik lerin en önemli bileeni Fedir.) O D) As the amount of C decress es or incress es, the machining capabilities of steels decresse(C mik tarı szaldikça veya arttik ça çelik lerin iş lenme kabiliyetleri szalır) E) Co and Cu does not affect the processing ability of materials. (Co ve Cu malzemelerin iş lenmek abiliyetini etk ilememek tedir.)arrow_forwardExplain any one of the turning operations in terms of tool shape,tool path, final and generated geometry, possible tolerances. Then list possible applications or products that are made using that operation.arrow_forward1. A 12.5cm long, 5.25mm radius copper alloy rod is being reduced in diameter to 4.25mm by turning on a lathe. The spindle rotates at N = 400rpm, and the tool is traveling at an axial speed of 200mm/min. Calculate the cutting speed, material-removal rate, cutting time, power dissipated, and cutting force. %3Darrow_forward
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