Analysis Of Quality Control To Reduce The Number Of Product Defects With The Six Sigma Method With The Integration Of Theory Of Inventive Problem Solving (Triz) And Fuzzy-mcdm
Abstract
PT Narmada Awet Muda is one of the companies engaged in the bottled drinking water
industry. The products produced are bottled drinking water, cup bottled drinking water, and
gallon bottled drinking water. It is known that there are problems related to quality control faced
by the company, namely the occurrence of product defects in the production process. This
research aims to help the company minimize the occurrence of product defects by using the Six
Sigma method with the stages of Define, Measure, Analyze, and Improve, FMEA, TRIZ
method, and Fuzzy MCDM method. Based on the company's historical data, it is known that
bottled drinking water products are the most produced products and are more in demand by
consumers. Based on this, the focus of this research is 600ml bottled drinking water products.
There are three types of defects that occur in the production process of drinking water in 600ml
bottles, namely bottle cap defects, bottle defects, and water volume defects. Based on data
processing, it is obtained that the type of bottle cap defect has the highest defect percentage
value, which is 38% of all defective products. Meanwhile, the average DPMO value is 8,621
and the average sigma value is 3,94. In the FMEA calculation, the potential cause with the
highest RPN value is obtained, namely the function of the bottle capping machine is not optimal
with a value of 270. Based on the method that has been applied and has been calculated, it
results that there are 9 potential causes of failure. To get an improvement proposal in the form
of optimal mitigation actions, there are 12 actions based on the results of the TRIZ method that
have been carried out.
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- Industrial Engineering [2225]