. . 2556 16-18 2556

* corresponding author

Laser Cutting Machine

Efficiency Maximization in Cutting of Laser Cutting Machine

for Automotive Industry

1* 2 3 4

7300 E-Mail: prachuab@su.ac.th**

Prachuab Klomjit1*Kantarak Pommirassuntorrn2Tanarat Janyu3Weeranut Borisut4 Department of Industrial Engineering and Management, Faculty of Engineering and Industrial

Technology, Silpakorn University, Nakhonpathom 73000 E-Mail: prachuab@su.ac.th*

Kaizen

(QC 7 Tools) 10

Support 1 Support

283.92 / 15.38 / 213 / 72.01%

196.96 / 23.63 / 148.38 / 100%

KAIZEN QC 7 Tools

Abstract

The objective of this study is to maximize the productivity by improving the productivity of automotive parts of pilot plant. The researchers have found the problem that the product does not meet the stated goals.

Therefore, the researchers use the industrial engineering technique such as studying the work of how to increase production by using KAIZEN principle and how to use the efficient tools (QC 7 Tools) and so on. To

do this is for analyzing the ways to improve efficiency in the production process as mentioned above. The

study process is divided into 10 steps by studying the production process and analyzing the losses occurred during the production process. The researchers found that the machine was operated discontinuously

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16-18 2556

because the machine had only one support for placing product and the machine must be stopped so that the

operators could place the product on the support. Those procedures have consumed a lot of time in

producing process. It has affected to the production which cannot meet the stated target. Thus, it must always be produced in overtime. The results showed that the production time, production volume, cost and

machine efficiency before improving, the average was 283.92 second/ piece, 15.38 pieces/hour, 213 Baht/piece and 72.01% respectively. After improving, the production rate was decreased to 196.96

second/piece, the production volume was increased to 23.63 pieces/hour, cost was decreased to 148.38 Baht/piece and the machine efficiency was increased to 100%.

Keywords: Efficiency, KAIZEN, QC 7 Tools

1.

210 12

Laser cutting machine Support

1

Support

2.

Laser Cutting Machine

ECRS [1]

E = Eliminate

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7

/

C = Combine

5

R = Rearrange

2 3 3 2

S = Simplify

(Jig) Fixture

Kaizen [2]

(Continuous

Improvement) Kaizen Kaizen

(Maintain) (Improvement)

Kaizen

Innovation

Kaizen

[3]-[6]

PDCA:

(Plan) (Do), (Check),

(Act)

5

Basic Industrial Engineering

Problem Solving Method

Kiken Yochi Training (KYT)

Suggestion Scheme

Quality Control Circles (QCC)

Just-Time System (JIT)

Total Productive Maintenance

(TPM)

Total Quality Management

(TQM)

"

" " " "

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16-18 2556

" "

5W 1H

What ? ? ? ?

When ?

? ? ?

Where ? ? ? ?

Who ? ? ?

? How ?

? ?

? Why ? 2

3.

1. Model: KOBELCO 9 Part No.

YN21C03094P1, YN21C03090P1, YN21C03093P2, YN21C04619P1,

YN21C03298P2, YN21C02357P1, YN21C03407P1, YN22C01158P1,

YN22C01159P1

2.

3.

4.

4.

-

Support 1

1

2

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3 / (s)

/ (s)

Part No.YN21C03094P1 326.7874

276.2551 Part 196.96 /

4 ( / )

( / )

Part No.YN21C03094P1 12 / 14

/ Part

5 / ( )

/ ( )

Part No.YN21C03094P1 226 / 199

/ Part

148.38 /

6

(%)

(%)

(%) Part No.YN21C03094P1

79.02% 100%,

Part 100%

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5.

283.92 / 15.38 / 213 / 72.01%

196.96 / 23.63 /

148.38 / 100%

6.

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Exhaust Manifold

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[6] ,

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