(5-5)' High carbon steel or alloy steel can be used for the set of tools na lathe. The tools must be sharpened periodically. Data for each are as follows: Output per hour Time between tool grinds Time required to change tools High carbon steel 60 pcs 4h 1h Alloy steel 70 pcs 6 h 1h The wage of the lathe operator is P50.00 per hour, based on actual working hours. The tool changer costs P60.00 per hour. Overhead costs for the lathe are P45.00 per hour, including tool-change time. A set of unsharpened high carbon steel costs P500 and can be ground ten times; a set of unsharpened alloy steel costs P850 and can be- ground five times. Which type of steel should be used?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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(5-5)' High carbon steel or alloy steel can be used for the set of tools
on a lathe. The tools must be sharpened periodically. Data for each are
as follows:
High carbon steel
60 pcs
4h
1h
e
Alloy steel
70 рсs
6 h
1h
Output per hour
Time between tool grinds
Time required to change tools
The wage of the lathe operator is P50.00 per hour, based on actual
working hours. The tool changer costs P60.00 per hour. Overhead
costs for the lathe are P45.00 per hour, including tool-change time.
A set of unsharpened high carbon'steel costs P500 and can be ground
ten times; a set of unsharpened alloy steel costs P850 and can be-
ground five times. Which type of steel should be used?
Solution
High carbon steel:
cycle time = 4 + 1= 5 hours
number of pieces per cycle
Cost per cycle:
Operator = P50 (4)
Tool.changer = (P60) (1)
Overhead = (P45) (5)
(4) (60) = 240.
%3D
P200
60
225
%3D
Unsharpened tool =
P600
50
Total
10
P535
Transcribed Image Text:Us (5-5)' High carbon steel or alloy steel can be used for the set of tools on a lathe. The tools must be sharpened periodically. Data for each are as follows: High carbon steel 60 pcs 4h 1h e Alloy steel 70 рсs 6 h 1h Output per hour Time between tool grinds Time required to change tools The wage of the lathe operator is P50.00 per hour, based on actual working hours. The tool changer costs P60.00 per hour. Overhead costs for the lathe are P45.00 per hour, including tool-change time. A set of unsharpened high carbon'steel costs P500 and can be ground ten times; a set of unsharpened alloy steel costs P850 and can be- ground five times. Which type of steel should be used? Solution High carbon steel: cycle time = 4 + 1= 5 hours number of pieces per cycle Cost per cycle: Operator = P50 (4) Tool.changer = (P60) (1) Overhead = (P45) (5) (4) (60) = 240. %3D P200 60 225 %3D Unsharpened tool = P600 50 Total 10 P535
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