Application of Taguchi Method to Reduce Rust

P R E S E N T E D B Y

RIONA IHSAN MEDIA

M10303813

Background

Design of Experiment (DOE)Parameter levels and their values

Parameters Level 1 Level 2

MaterialsTime (min)Temperature (oC)Media

Coca-Cola520Cotton

Lemon1040Sponge

Assigning Orthogonal Array (OA)The experimental layout according to the L8 orthogonal array

TrialNo.

MaterialTime (min)

Temp. (oC)

Media

12345678

11112222

11221122

12121212

12212112

Assigning Parameters into OAExperimental layout after assigning the values of the parameters

ExperimentNo.

MaterialTime (min)

Temp. (oC)

Media

12345678

Coca-ColaCoca-ColaCoca-ColaCoca-Cola

LemonLemonLemonLemon

55

101055

1010

2040204020402040

CottonSpongeSpongeCottonSpongeCottonCottonSponge

Analysis

Trial no.Factor

DATA1 2 4 7A B C D 1 2 3

1 1 1 1 1 44.2176 49.1157 42.36262 1 1 2 2 67.7874 68.4906 62.79053 1 2 1 2 77.704 67.8293 74.62084 1 2 2 1 48.7393 44.6663 45.09385 2 1 1 2 25.0258 20.0442 22.25956 2 1 2 1 59.4418 59.6213 59.17727 2 2 1 1 58.1384 52.3806 57.26498 2 2 2 2 36.4291 32.1926 34.8408

Analysis (cont.)ANOVA TABLE S/NLB

Factor SS v V F Pc (%)

A 26.1088 1 26.1088 10.3488 23.5859

B* 1.5358 1 1.5358

C* 1.5016 1 1.5016

D* 3.0228 1 3.0228

AxB 0.3116 1 0.3116

BxC 51.8122 1 51.8122 20.5369 49.2893

e* 4.0314 1

T 88.3241 100

epooled 10.0915 4 2.5229 27.1248

Analysis (cont.)

A1, B2, C2, and D1 arethe best configurationfactor to get an optimalresult in this experiment

Analysis (cont.)

Analysis (cont.)Confirmation Experiment

𝜇𝐴1𝐵2𝐶2𝐷1 = 𝐴1 + 𝐵2𝐶2 + 𝐷1 − 2 𝑇 =61.2204

𝜂𝑒𝑓𝑓 =24

1 + 1 + 1 + 1= 6

r = 8 (OA L8)

𝐹0.1,1,8 = 3.45792

𝑉𝑒 = 2.5229

𝐶𝐼3 = 𝐹0.1,1,8𝑉𝑒 1/𝜂𝑒𝑓𝑓 + (1/𝑟 = 1.5951

59.6253< 𝜇<62.8155 59.6253 < 𝟔𝟏. 𝟖𝟑𝟔𝟒𝟓 < 62.8155

Trial no. Value1 62.19052 63.24943 58.84134 62.65765 63.02046 61.25977 59.31408 64.1587

𝜇 = 61.83645

ConclusionOptimum condition can be summarized as follows:

Among the four factors and levels tested, Coca-Cola (A) and theinteraction between time (B) and temperature (C) and Cotton (D) is themost effective factors for removing rust.

The experimental results indicated that the optimum conditions areCoca-Cola as main material, 10 minutes time to hold, 40oC temperaturewhile experiments, and cotton as a media to eliminate rust.

Thank you