Homework Answers
Solution:
1) Boring and Internal grooving 2) Drilling 3) Cutting with a form tool
4) Face grooving 5) Facing 6) Turning and external grooving
7) Knurling 8) Straight turning 9) Taper turning
10) Threading 11) Cutting off 12) Profiling
Factors affecting on tool life:
- Cutting speed: It has the greatest influence on tool life. As the cutting speed increases the temperature also rises then the heat is more concentrated on the tool than on the work and the hardness of the tool matrix changes so the relative increase in the hardness of the work accelerates the abrasive action
- Feed and depth of cut: The tool life is influenced by the feed rate also. With a fine feed the area of chip passing over the tool face is greater than that of coarse feed for a given volume of swarf removal, but to offset this chip will be greater hence the resultant pressure will nullify the advantage.
- Tool geometry: The tool life is also affected by tool geometry. A tool with large rake angle becomes weak as a large rake reduces the tool cross-section and the amount of metal to absorb the heat.
- Tool materials: Physical and chemical properties of work material influence tool life by affecting form stability and rate of wear of tool.
- Work materials: With the increase in hardness of work piece, forces and power consumption increases and tool wear increases. So tool life decreases.When ductility of work piece increases, forces and power consumption decreases, tool wear decreases. So tool life increases
- Nature of cutting: It has greater influence on tool life. It gives regular impacts on tool leading to its failure much earlier.
- Rigidity of machine tool and work: When the tool have supported in strongly, which is rigid the machine will have more life than tool under vibration of machine. Loose work piece will have decrease the life of tool.
Add Answer to:
Identify below Lathe operations Workpiece Depth feed. Briefly explain how below factors affecting on tool life...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01 inch in 1 minute of cur while cylindrically turning on a lathe a copper cylinder of 2 inch diameter and sinch long with a workpiece rotational speed 200 rpm and a tool feed rate of 0.01 inch per each rotation of the workpiece and a depth of cut 0.1 inch per pass. When only the workpiece rotational speed is increased to 300 rpm (and...
a) A workpiece (φ-75 mm, 1 275 mm) is machined using turning at a feed rate of 0.25 mm/rev. At a cutting speed- 3.5 m/s, the turning tool is ineffective after machining 3 parts, and at a cutting s...
a) A workpiece (φ-75 mm, 1 275 mm) is machined using turning at a feed rate of 0.25 mm/rev. At a cutting speed- 3.5 m/s, the turning tool is ineffective after machining 3 parts, and at a cutting speed = 2.5 m/s, the turning tool is effective for producing 20 parts. Calculate the Cutting Speed that will allow 30 parts to be machined between tool changes [20 marks] b) An aluminium alloy workpiece (tensile strength - 325 N/mm2 and yield...
During a turning operation on a lathe using a grooved tool, the following forces were recorded:...
During a turning operation on a lathe using a grooved tool, the
following forces were recorded:
Group
1
2
3
4
5
6
Feed force, Fx (kN)
1.70
1.68
1.59
1.75
1.67
1.64
Radial force, Fy (kN)
1.32
1.39
1.44
1.42
1.45
1.38
Tangential force, Fz (kN)
2.18
2.37
2.38
2.32
2.29
2.33
The machine set-up includes a feed (s) of 0.24 mm/rev. and the
depth of cut (d) of 2.5 mm.
Tool rake angle ()
= - 6 deg....
Rtant: Be precise; use sketches, formulae, and name all mathematical symbols you use. cutting for...
We were unable to transcribe this imagertant: Be precise; use sketches, formulae, and name all mathematical symbols you use. cutting force in turning is given by F-KA where A is the cross section of cut and K is the ultimate shear strength of the work material. Calculate: (a) material removal rate (MRR) and (b) the total power required by the machine for cylindrical surface turning of solid rods of 50 mm diameter with a tool feed rate of 0.05 mm/work...
Problem 1 Consider the drilling of Feature 3 (Thru Hole) on the flashlight head (Figure 1)...
Problem 1 Consider the drilling of Feature 3 (Thru Hole) on the flashlight head (Figure 1) Assume the feed of the drilling opcration (i.e., the distance the drill penetrates per unit revolution) is,f= 0.01 inrev. " a) Calculate the material removal rate (in in3/s or mm3/s). b) Use the Taylor Tool Life equation to estimate the tool life (in minutes) for this operation. Use Table 1 to pick appropriate values of C and n (the flashlight material is aluminum and...
Using supply analysis, explain how is supply applied in the article below about Tesla.? Thank you...
Using supply analysis, explain how is supply applied in the article below about Tesla.? Thank you so much for your help. Factors Affecting Supply (Tesla) The Cost of Production and Cutting Off Unprofitable Vehicle Models In January of 2019, Tesla cut 7% of its workforce to ramp up production of its Model 3 sedans, reducing the price of its products and boosting margins. At the same time, the company discontinued the cheapest versions of its Model S sedans and Model...
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match...
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match each type of degradation discussed to the type of consequence suggested in the textbook. (Answer based on what the book says, not based on your personal opinion.) Air pollution A., is killinig humans 8,..isklin the earth Land poliution Water pollution address chiticar Watel Air Pollution Air pollution occurs when the release of materials to the atmosphere cannot be safelv disposed of by natural processes....
Write the null and alternative hypothesis symbolically and identify which hypothesis is the claim. Is the...
Write the null and alternative hypothesis symbolically and identify which hypothesis is the claim. Is the test two-tailed, left-tailed, or right-tailed? Explain. Which test statistic will you use for your hypothesis test; z-test or t-test? Explain. What is the value of the test-statistic? Show your calculation Either find the p-value or critical value depending on your preference. Explain how you calculated or found it. What is your decision? Reject the null or do not reject the null? Explain why you...
Hello! Could you please write a 6 paragraph summary (5-6 sentences each paragraph) of the below?...
Hello! Could you please write a 6 paragraph summary (5-6
sentences each paragraph) of the below? In the overview, if you
could please describe the information in detail. Please have
completed in 6 days if possible. Thank you!
In 50 Words Or LesS .6TOC combines lean Six Sigma (LSS) and the theory of constraints (TOC) for bottom-line benefits . The method's metrics pyramids and communi- cations allow organiza- tions to retain gains and monitor benefits. · 6TOC goes beyond fac-...
Job Title Salary Accountants and Auditors 48016.13 Actuaries 59598.07 Administrative Law Judges, Adjudicators, and Hearing Officers...
Job Title Salary Accountants and Auditors 48016.13 Actuaries 59598.07 Administrative Law Judges, Adjudicators, and Hearing Officers 63965.04 Administrative Services Managers 63384.11 Adult Basic and Secondary Education and Literacy Teachers and Instructors 65107.48 Advertising and Promotions Managers 72901.85 Advertising Sales Agents 50254.43 Aerospace Engineering and Operations Technicians 55866.82 Aerospace Engineers 56394.51 Agents and Business Managers of Artists, Performers, and Athletes 65452.90 Agricultural and Food Science Technicians 78414.31 Agricultural Inspectors 58825.73 Agricultural Sciences Teachers, Postsecondary 55612.90 Air Traffic Controllers 44655.45 Aircraft Cargo...
in an accelerated tool life test an HSS cutting tool shows a Flank wear of 0.01 inch in 1 minute of cur while cylindrically turning on a lathe a copper cylinder of 2 inch diameter and sinch long with a workpiece rotational speed 200 rpm and a tool feed rate of 0.01 inch per each rotation of the workpiece and a depth of cut 0.1 inch per pass. When only the workpiece rotational speed is increased to 300 rpm (and...
a) A workpiece (φ-75 mm, 1 275 mm) is machined using turning at a feed rate of 0.25 mm/rev. At a cutting speed- 3.5 m/s, the turning tool is ineffective after machining 3 parts, and at a cutting speed = 2.5 m/s, the turning tool is effective for producing 20 parts. Calculate the Cutting Speed that will allow 30 parts to be machined between tool changes [20 marks] b) An aluminium alloy workpiece (tensile strength - 325 N/mm2 and yield...
During a turning operation on a lathe using a grooved tool, the
following forces were recorded:
Group
1
2
3
4
5
6
Feed force, Fx (kN)
1.70
1.68
1.59
1.75
1.67
1.64
Radial force, Fy (kN)
1.32
1.39
1.44
1.42
1.45
1.38
Tangential force, Fz (kN)
2.18
2.37
2.38
2.32
2.29
2.33
The machine set-up includes a feed (s) of 0.24 mm/rev. and the
depth of cut (d) of 2.5 mm.
Tool rake angle ()
= - 6 deg....
We were unable to transcribe this imagertant: Be precise; use sketches, formulae, and name all mathematical symbols you use. cutting force in turning is given by F-KA where A is the cross section of cut and K is the ultimate shear strength of the work material. Calculate: (a) material removal rate (MRR) and (b) the total power required by the machine for cylindrical surface turning of solid rods of 50 mm diameter with a tool feed rate of 0.05 mm/work...
Problem 1 Consider the drilling of Feature 3 (Thru Hole) on the flashlight head (Figure 1) Assume the feed of the drilling opcration (i.e., the distance the drill penetrates per unit revolution) is,f= 0.01 inrev. " a) Calculate the material removal rate (in in3/s or mm3/s). b) Use the Taylor Tool Life equation to estimate the tool life (in minutes) for this operation. Use Table 1 to pick appropriate values of C and n (the flashlight material is aluminum and...
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match each type of degradation discussed to the type of consequence suggested in the textbook. (Answer based on what the book says, not based on your personal opinion.) Air pollution A., is killinig humans 8,..isklin the earth Land poliution Water pollution address chiticar Watel Air Pollution Air pollution occurs when the release of materials to the atmosphere cannot be safelv disposed of by natural processes....
Hello! Could you please write a 6 paragraph summary (5-6
sentences each paragraph) of the below? In the overview, if you
could please describe the information in detail. Please have
completed in 6 days if possible. Thank you!
In 50 Words Or LesS .6TOC combines lean Six Sigma (LSS) and the theory of constraints (TOC) for bottom-line benefits . The method's metrics pyramids and communi- cations allow organiza- tions to retain gains and monitor benefits. · 6TOC goes beyond fac-...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago