quality management 3
TRANSCRIPT
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Mind MAP of QUALITY
QPE is the TARGET parameter SIX SIGMA is the ASSESMENT method SEVEN TOOLS is the QUALITY tools
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Seven BASIC tools of quality
• Check Sheet
• Stratification
• Histogram
• Pareto Charts
• Ishikawa Diagram / Fishbone Diagram
• Scatter Diagram
• Control Chart
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check Sheet / Tally sheet
Taken From QPE
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet procedure
• Classification: A trait such as a defect or failure mode must be classified into a category.
• Location: The physical location of a trait is indicated on a picture of a part or item being evaluated.
• Frequency: The presence or absence of a trait or combination of traits is indicated. Also number of occurrences of a trait on a part can be indicated.
• Measurement Scale: A measurement scale is divided into intervals, and measurements are indicated by checking an appropriate interval.
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet- Classification
• Classification: A trait such as a defect or failure mode must be classified into a category.
Classification of defects/failure must be technically identified
example:
Dimension
Motor speed
Wheel clearance
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check Sheet / Tally sheet
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet- Location
• Location: The physical location of a trait is indicated on a picture of a part or item being evaluated. Location of defects/failure must be identified
example: Schneider manuf.Cikarang Dripper line 2 Molding room 14 Hyundai machine ltd
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check Sheet / Tally sheet
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet- Frequency
• Frequency: The presence or absence of a trait or combination of traits is indicated. Also number of occurrences of a trait on a part can be indicated.
Frequency of defects/failure must be identified (by a check or stripe)
example:
√ √ √ √ √ √
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check Sheet / Tally sheet
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet- Scale
• Measurement Scale: A measurement scale is divided into intervals, and measurements are indicated by checking an appropriate interval.
Measurements scale of defects/failure must be identified
example: Dimension : mm – failure tolerance OUT > 100mm High 60-100mm Medium 30-59mm Low 3 – 29mm
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check Sheet / Tally sheet ???
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Check sheet – even A simple one works
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Stratification
A classification order of a problem Example : Classification by DATE Classification by DEFECTS Classification by SHIFT Classification by LOCATION
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Stratification A sample taken everyday SUNDAY to SATURDAY
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Stratification By dates
DATES Month 1 Month 2 Month 3
Sunday 0 0 0
Monday 10 9 8
Tuesday 13 15 14
Wednesday 10 9 7
Thursday 5 3 4
Friday 4 3 5
Saturday 0 0 0
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Stratification By location
DATES Month 1 Month 2 Month 3
Line 1 42 44 41
Line 2 36 33 34
Line 3 54 66 56
Line 4 22 23 23
Line 5 12 11 10
Line 6 44 42 43
Line 7 34 33 31
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
HISTOGRAM
A classification order of a problem GRAPH Example : Histogram by DATE Histogram by DEFECTS Histogram by SHIFT Histogram by LOCATION
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
HISTOGRAM
A classification order of a problem GRAPH Example : Histogram by DATE Histogram by DEFECTS Histogram by SHIFT Histogram by LOCATION
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Make a Check sheet • Make a check sheet design for the production of
your previous internship (prakerin) in excel
Make stratification • Make a stratification design for the production
of your previous internship (prakerin) in excel
Make histogram • Make a histogram design for the production of
your previous internship (prakerin) in excel
DATE
S
Month
1
Month
2
Month
3
Line 1 42 44 41
Line 2 36 33 34
Line 3 54 66 56
Line 4 22 23 23
Line 5 12 11 10
Line 6 44 42 43
Line 7 34 33 31
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
PARETO chart
A classification order / prioritizing order
– Pareto charts are used to identify and prioritize problems to be solved.
– They are actually histograms aided by the 80/20 rule adapted by Joseph Juran.
•Remember the 80/20 rule states that approximately 80% of the problems are created by approximately 20% of the causes.
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
PARETO chart
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
PARETO CHART A sample taken with 10 types of defect
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
PARETO CHART Monthly view table
Type of defects Month 1 Month 2 Month 3
Supply part rusted 22 29 21
Misaligned weld 2 4 3
Improper test 4 5 2
Wrong part 2
Void in casting 2 4
Film on part 4 4 4
Incorrect dimension 10 9 10
Adhesive failure 2 2
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
PARETO CHART Monthly view chart
0
5
10
15
20
25
Month 1
Month 1
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
A brainstorming of cause and effect
Created by defining some general casualties Example : MAN ENVIRONMENT MACHINE METHOD
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
A brainstorming of cause and effect
And by defining some SUB general casualties Example : MAN -skills -experience -pride
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
A brainstorming of cause and effect
And even by defining some MORE minor SUB general casualties Example : MAN -skills - training - educational background -experience -pride
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
A brainstorming of cause and effect
And one effect Example : Supply part rusted Misaligned weld Improper test Wrong part Void in casting Film on part Incorrect dimension Adhesive failure
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
A brainstorming of cause and effect
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
A diagram showing relationship between independent X and dependent Y variables
– Opt one casualty as independent variable X
(from the control variable casualties)
– Opt one effect as dependent variable Y (from the dependent variable effect)
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
EXAMPLE of picking x variable
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
A diagram showing relationship between independent X and dependent Y variables
– Opt one casualty as independent variable X
(from the Communication branch) =>
(lack of information) =>
(Add new information item)
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
A diagram showing relationship between independent X and dependent Y variables
– Opt one casualty as independent variable X
Adding quantities of information (confirmation) from 1 to 6 1. Telephone number 2. Mobile phone number 3. Email address 4. Secondary address 5. Office address 6. Mail box address
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
EXAMPLE of picking x variable
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
A diagram showing relationship between independent X and dependent Y variables
– Opt one casualty as independent variable Y
(Incorrect delivery)
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
A diagram showing relationship between independent X and dependent Y variables
– Opt one casualty as independent variable Y
The quantity of incorrect delivery in 1 month / in 1000 order
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Ishikawa diagram / fishbone
EXAMPLE of picking x variable
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram Showing degree of correlation and dependency
Bivarian Pearson Analysis
Trivarian Pearson Analysis
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Bivarian Scatter Diagram Analysis
Pearson product-moment correlation coefficient (PPMCC)
Axes variable Y Dependent
Axes variable X Independent / test variable
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Trivarian Scatter Diagram Analysis
Pearson product-moment correlation coefficient (PPMCC) Single control variable
Axes variable Z Dependent
Axes variable X Independent / test variable
Axes variable Y Dependent
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Trivarian Scatter Diagram Analysis
Pearson product-moment correlation coefficient (PPMCC) Double control variable
Axes variable Z Dependent
Axes variable X Independent / test variable
Axes variable Y Independent / test variable
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
Correlation table PEARSON COEFFICIENT
Correlation Negative Positive
None −0.09 to 0.0 0.0 to 0.09
Small −0.3 to −0.1 0.1 to 0.3
Medium −0.5 to −0.3 0.3 to 0.5
Large −1.0 to −0.5 0.5 to 1.0
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
Correlation test 2 3 4 3 2 3 4 5 4 3
4 5 6 5 6 5 4 3 4 6
7 8 6 7 6 5 6 7 5 6
7 8 6 5 4 5 6 7 8 6
7 6 7 8 6 5 6 7 8 5
4 3 3 3 2 3 5 5 3 2
3 4 3 2 3 4 5 3 2 3
3 4 2 4 5 5 4 3 4 3
X = X
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
Correlation test 4 3 4 3 4 4 4 4 3 4
3 4 3 4 3 5 5 5 5 5
4 4 5 6 6 7 6 5 7 6
5 6 5 4 5 6 7 6 5 4
6 5 4 5 6 5 4 5 6 4
6 5 4 5 6 5 4 5 6 5
4 4 5 4 6 6 6 5 6 7
5 6 7 7 7 6 6 7 6 5
X = X
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Aditya Kurniawan
POLITEKNIK KOTA MALANG
Scatter Diagram
Correlation test 2 3 3 3 4 4 5 5 6 6
7 7 8 9 8 9 7 8 9 10
11 12 11 3 3 4 5 5 6 5
6 7 6 7 6 7 8 7 8 7
8 9 8 9 8 9 10 10 11 11
12 12 12 13 14 14 14 12 11 9
8 9 8 7 8 9 8 7 6 7
8 9 10 11 11 12 13 11 12 13
X = X