Glass-Mold Defective Reduction in Plastic Lenses Manufacturing Process Using Six Sigma Approach

Rojanarowan, Napassavong; Senprom, Teeraporn

doi:10.4028/www.scientific.net/amr.156-157.1598

Cited by 2 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then, the optimal setting of the process factors could be obtained. Six Sigma approach has been used in various industries such as automobile, electronics, and consumer products [4] - [11].…”

Section: Literature Reviewmentioning

confidence: 99%

Improvement of Paint Thickness in Electro Deposition Painting Process of Truck Manufacturing

Khumgorn

Osothsilp

2014

AMR

View full text Add to dashboard Cite

The objective of this research is to improve process capability and reduce production cost related to thickness of paint from Electro Deposition Painting (EDP) process. To achieve the objective, Six Sigma method was applied to find out the optimal setting of significant process factors, which are concentration of pigment in EDP paint, dipping time, and dipping voltage. Design of experiment technique with Central Composite Design type helped indicate the optimal setting of the three factors, which yielded the target EDP coating thickness with a minimal production cost. With this optimal setting, the process capability index (Cpk) increased from 0.61 to 1.99, and the production cost is expected to reduce by 1,730,498 THB per year.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Improvement of Paint Thickness in Electro Deposition Painting Process of Truck Manufacturing

Khumgorn

Osothsilp

2014

AMR

View full text Add to dashboard Cite

show abstract

“…They provided a model to effectively guide the implementation of Six sigma programs to reduce variation or waste from the operations. Rojanarowan and Senprom [6] applied Six Sigma to reduce scratch defects on glass molds of eye-glasses plastic lens. Rojanarowan and Senjuntichai [7] also applied Six Sigma approach to reduce the oil contamination of machining parts.…”

Section: Related Theorymentioning

confidence: 99%

Defective Reduction on Dent Defects in Flexible Printed Circuits Manufacturing Process

Artharn¹

2013

IOSRJEN

View full text Add to dashboard Cite

: This research presents methods to reduce defectives due to dent defects in flexible printed circuits manufacturing process. The DMAIC phases of Six Sigma quality improvement approach were applied to solve the problem. It was found that the variables that statistically affect the dent problem were 1) method to polish stainless steel plate, 2) method to store stainless steel plate, 3) method to clean stainless steel plate, 4) fisheyes/ foreign matters in the TPX release film. The dent defects were reduced by 1) changing from dry polishing method to wet polishing method, 2) storing stainless steel plates on storing tables and covering them by dust protectors, 3) improving cleaning equipment, 4) determining the relationship between the diameter of fisheyes/foreign matters in the release film and the defective proportion to encourage quality improvement of the vender. After the improvement, the defective proportion due to dent defects was reduced from 947 DPPM to 442 DPPM or 53.3% reduction. This improvement decreased defective cost of 666,529 baht per year .

show abstract

Glass-Mold Defective Reduction in Plastic Lenses Manufacturing Process Using Six Sigma Approach

Cited by 2 publications

References 10 publications

Improvement of Paint Thickness in Electro Deposition Painting Process of Truck Manufacturing

Improvement of Paint Thickness in Electro Deposition Painting Process of Truck Manufacturing

Defective Reduction on Dent Defects in Flexible Printed Circuits Manufacturing Process

Contact Info

Product

Resources

About