Problem 2. (Determining Cutting Speeds in Machining Economics) A turning operation is performed with HSS tooling on mild steel, with Taylor tool life parameters n = 0.12, C = 60 m/min. Work part length = 450 mm and diameter = 80 mm. Feed = 0.20 mm/rev. Handling time per piece = 4.0 min, and tool change time = 1.5 min. Cost of machine and operator = $27/hr, and tooling cost = $2 per cutting edge. Find the a. cutting speed for maximum production rate = 44.997m/min. b. cutting speed for minimum cost = 38.143m/min. Problem 3. (Production Rate and Cost in Machining Economics)___ For the two cutting speeds computed in problem 2, determine: the hourly production rate and a. b. the cost per piece. Need help with problem 3 already done problem 2
Problem 2. (Determining Cutting Speeds in Machining Economics) A turning operation is performed with HSS tooling on mild steel, with Taylor tool life parameters n = 0.12, C = 60 m/min. Work part length = 450 mm and diameter = 80 mm. Feed = 0.20 mm/rev. Handling time per piece = 4.0 min, and tool change time = 1.5 min. Cost of machine and operator = $27/hr, and tooling cost = $2 per cutting edge. Find the a. cutting speed for maximum production rate = 44.997m/min. b. cutting speed for minimum cost = 38.143m/min. Problem 3. (Production Rate and Cost in Machining Economics)___ For the two cutting speeds computed in problem 2, determine: the hourly production rate and a. b. the cost per piece. Need help with problem 3 already done problem 2
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:**Problem 2. (Determining Cutting Speeds in Machining Economics)**
A turning operation is performed with HSS tooling on mild steel, with Taylor tool life parameters \( n = 0.12 \), \( C = 60 \) m/min. Work part length = 450 mm and diameter = 80 mm. Feed = 0.20 mm/rev. Handling time per piece = 4.0 min, and tool change time = 1.5 min. Cost of machine and operator = $27/hr, and tooling cost = $2 per cutting edge. Find the:
a. cutting speed for maximum production rate = 44.997 m/min.
b. cutting speed for minimum cost = 38.143 m/min.
**Problem 3. (Production Rate and Cost in Machining Economics)**
For the two cutting speeds computed in Problem 2, determine:
a. the hourly production rate and
b. the cost per piece.
*Note: Need help with Problem 3; already done Problem 2.*
Expert Solution
Step 1
Given:
n=0.12 ; C=60 m/min
Length of workpiece
Diameter of the workpiece
Feed
Handling time per piece
Tool change time
Cost of machine and operator
Tooling cost
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Solved in 7 steps
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