scholarly journals Defect reduction of roof panel part in the export delivery process using the DMAIC method: a case study

2020 ◽  
Vol 4 (2) ◽  
pp. 108-116
Author(s):  
Indra Setiawan ◽  
Setiawan Setiawan

Product quality has now become one of the main factors that every company must have to compete globally. One way is to reduce the number of defective products in the production process. This method is a continuous improvement effort made by PT Toyota Motor Manu­fac­turing Indonesia and companies engaged in the automotive sector that produces cars. One of the processes is packing roof panels whose output will be sent to importing countries where the number of re­quests per month is relatively high but still has a high defect rate. Based on production data and defect data for the January-February 2019 period, roof panel packaging production has a 1% -3% defect rate. This company must reduce the defect rate to achieve the com­pany target of zero defects. This study aims to improve the quality of the packaging process by minimizing the number of defective products. This study uses the Six Sigma method with DMAIC phases. This method has several phases, namely, Define, Measure, Analysis, Improvement, and Control. Corrective action to reduce product defects based on 5W + 1H is to formulate a repair plan at the upgrade phase, namely by making SOPs spraying anti-rust and supervising operators who produce roof panel packaging. The improvement results reduced the DPMO value from 33,500 units to 2,050 units and increased the sigma level from 3.33 to 4.37. The DMAIC phase effectively controls and improves product quality levels in the automotive industry.

2018 ◽  
Vol 7 (1) ◽  
pp. 31
Author(s):  
Sugih Sudharma Tjandra ◽  
Nixon Setia Utama ◽  
Hanky Fransiscus

<em>CV Jaya Reksa Manggala (JRM) is one of clothing company. With increasing competition in this clothing company, the companies are required to keep improving the quality of clothing products. One of the important things in quality is reduction of product defects. One of the proven methods of  quality improvement is the Six Sigma DMAIC method, which is a continous improvement method that aims to achieve the best quality. One of the products of CV JRM which is still have a lot of defects is 514 products. From the initial data obtained, DPMO value for process I and II for 514 products is 10,768.52 and 27,341.42 with sigma level 3.79 and 3.43. The steps undertaken in this Six Sigma DMAIC method include define, measure, analyze, implementation and control. Several proposed improvements were then made to reduce the problem of these defects and from the data at the control stage, the DPMO values of processes I and II became 2,941.76 and 1,812.69 with sigma levels of 4.25 and 4.41. From this result it can be said that with Six Sigma DMAIC method, there is improvement of quality for product 514 at CV JRM. </em>


2020 ◽  
Vol 8 ◽  
pp. 428-436
Author(s):  
Isna Zulfa Azmi ◽  
Oktora Yogi Sari

The increasing number of bag factories throughout Indonesia that have well-known brands and every manufacturer is required to provide products of good quality. Poor product quality will cause consumers to move to other similar products. So in the production of bags, the thing that must be considered by the company is the quality of its products. In this study the authors aim to analyze quality control in a production process and identify several factors that cause disability in the product, PT. MAG is a bag company that is demanded to control the quality of the production process. This study uses a six sigma analysis tool consisting of five steps, namely using the DMAIC method (Define, Measure, Analyze, Improve, and Control). Based on the results of the study there are three types of disabilities in the production process, including cutting, zippers and broken bag straps with an average sigma value of 2.48 with a DPMO value of 20256.92. Factors affecting the production process are human, machine, environment, equipment, raw materials, and methods. In this case the company can use the Six Sigma method because it is still in the medium category.


Author(s):  
Anjar Suprayogi

PT. Laksana Teknik Makmur is a manufacturing company engaged in the manufacture of car accesories in Indonesia. One of the products produced is a tank washer with a high defect rate in the production process of 11 percent. This study uses the DMAIC method (Define, Measure, Analyze, Improve, Control) as a tool to solve problems about improving the quality of the process of making tank washer. The initial analysis for Define shows that CTQ (Critical to Quality) is the largest defect of the wave, which is 4.1 percent of the total defects of tank washer. From the measurement results in the Measure stage, the DPMO value is 108475 with Sigma Level 2.73. Then Analyze is done to get any factors that cause wave defects. On the Improve stage using Ishikawa's method, the results of the new Standard Operating Procedure are recommended. In the final stage, Control is carried out after the implementation of the new SOP for 1 month, the result is that the wave defect value drops to 2 percent and the Sigma Level value increases to 3.326 with the value of DPMO 20424.


2021 ◽  
Vol 319 ◽  
pp. 01093
Author(s):  
Fatima Ezzahra Achibat ◽  
Ahmed Lebkiri ◽  
El Mahjoub Aouane

Customer satisfaction is the key to success in all organizations and this satisfaction has a correlational relationship with the quality so that is why we notice that during the last ten years, the automotive sector focuses on the quality whose new strategy reinforces to develop quality and anchors Morocco in the global automotive industry. This article describes the use of Six Sigma through the DMAIC method (Define, Measure, Analyze, Improve and Control) during production lines in a wiring company. The objective is to reduce the defect rate to improve the quality of the product. After defining the workplace and measuring the defect rate, a structured analysis was done to find the root causes and then actions were implemented to reduce the defect rate. To this effect, the deployment of this method has reduces the rate of defects. The use of the Six Sigma method plays a key role in improving the quality of the product as well as financial gains for the different companies.


Author(s):  
Dheeraj Kumar Tyagi ◽  
Shivakumar .

Lifestyle disorders are one of the biggest threats for the population living unhealthy lifestyle. Sthoulya (Obesity) is one such disorder which creates lot of physical as well as mental disorder to the sufferer. Due to changing lifestyle, comforts and dietary habit lots of individuals changed their life totally. Obesity is a growing disease in developed and developing countries. Prevalence is drastically hike in past few years. Ayurveda, the science of life with which we can manage and control lots of lifestyle disorders. Focusing on dietary and lifestyle management along with treatment, we can overcome the hazards of obesity which is growing in a uncontrolled manner. The available data is based on the clinical findings only. Aim and objective: To assess the effect of “Guru Cha Atarpanam Chikitsa” in the management of Sthoulya. Setting: Swastharakshana evam Yoga, OPD and IPD, SDMCAH, Hassan. Method: Udwarthana, Parisheka, Shamana Aushadhis, Ahara, and Vihara was followed within the treatment duration and effect of treatment was assessed before and after treatment, advised for follow up. Results: The treatment adopted is effective in the management of Sthoulya and to improve the quality of life.


Author(s):  
Christof Paulus ◽  
Albert Weber

AbstractVenice is considered the best-informed community of the late Middle Ages. The study examines the availability of information for the second half of the 15th century, particularly with regard to the key year 1462/1463, and as a case study concentrates on areas of the supposed Venetian periphery of interest, above all Hungary and the two principalities of Wallachia and Moldavia. The result is a thoroughly differentiated system of information acquisition, verification and control. Means of communication, as well as different areas of interest of the Serenissima, can be identified. A distinction is made between information maps and communication maps. The latter also include the distribution of news from the lagoon city exchanged with foreign envoys. During the period concerned, news was exchanged in an astonishingly liberal way, in turn integrating the Serenissima into the information networks of the other Italian states. The study thus places the „information commodity“ within the research field of late medieval gift exchange and patronage structures. In short, a thoroughly pragmatic Venetian approach to news acquisition and evaluation can be observed. Verification of the quality of the information obtained was subject not least to quantitative and ranking criteria. Ultimately, the informational power of Venice was based above all on its outstanding reputation among its contemporaries.


Sci ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 28
Author(s):  
Prince Yeboah ◽  
Arnold Donkor Forkuo ◽  
Obed Kwabena Offe Amponsah ◽  
Nana Ofori Adomako ◽  
Ahmad Yaman Abdin ◽  
...  

Malaria is a serious infection affecting millions of people in Africa. Our study investigated the personal preferences and applications of antimalarial medicines in Ghana. Based on over 1000 questionnaires distributed in Ghana from January to May 2019, we noticed that although Western medications to fight this disease are widely available, most patients in Ghana prefer treatment with locally produced herbal remedies. This preference appears to be due to a combination of traditional venues for obtaining medicines “on the street” rather than in licensed pharmacies, trust in local and “green” products, extensive advertisement of such local products, and an inherent distrust of imported and synthetic or unnatural medicines. Going local and natural is a trend also observed in other countries across the globe, and adds to the acceptance or rejection of drugs regardless of their activity or toxicity. In fact, adverse side effects associated with herbal remedies, such as general weakness and swollen, sore mouth, do not seem to deter the respondents of this study in Ghana. We propose a combination of (a) increasing public awareness of the benefits of modern medicine and (b) an improvement and control of the quality of herbal remedies to raise the standard of malaria treatment in countries such as Ghana.


2012 ◽  
Vol 622-623 ◽  
pp. 472-477
Author(s):  
Ali A. Karakhan ◽  
Angham E. Alsaffar

The aims of this study are to measure the defect rate and analyze the problems of production of ready concrete mixture plant by using Six Sigma methodology which is a business strategy for operations improvement depending basically on the application of its sub-methodology DMAIC improvement cycle and the basic statistical tools where the process sigma level of concrete production in the case study was 2.41 σ.


UNISTEK ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 6-10
Author(s):  
Egar Naufal Ari Satya ◽  
Wahyudin Wahyudin

Abstrak. Dunia industri yang semakin berkembang akan mengakibatkan banyaknya persaingan. Perus-ahaan yang dapat bersaing adalah perusahaan yang dapat menjaga  kualitas produknya dengan baik sehingga dapat memenuhi kepuasan konsumen. Maka dari itu diperlukan pengendalian kualitas. Penelitian ini difokuskan pada penurunan cacat pada produk batu bata merah di CV. Ghatan Fatahillah dengan metode Six Sigma-DMAIC (Define, Measure, Analyze, Improve, dan Control). Dari hasil penelitian didapatkan DPMO sebesar 36.212 dengan nilai sigma 3,29. Jenis cacat yang paling sering terjadi pada batu bata merah yaitu pecah/patah yaitu sebesar 4.327 atau 59,81% dari total keseluruhan produk yang cacat.  Hasil dari tahap analyze dengan fishbone diagram, ditetapkan penyebab dari pecah/cacat, yaitu: pekerja kurang paham standar kualitas, tidak adanya pemeriksaan produk, pekerja kurang paham prosedur kerja, kinerja mesin tidak stabil, pekerja kurang teliti,  jumlah penggilingan tidak menentu, dan komposisi batu bata tidak menentu. Maka perlu dilakukan usulan perbaikan agar dapat mengurangi jumlah produk yang cacat pada batu bata merah. Kata kunci: DMAIC, DPMO, Pengendalian Kualitas, Six Sigma Abstract. The growing industrial world will result in a lot of competition. Companies that can compete are companies that can maintain the quality of their products well so that they can meet customer satisfaction. Therefore, quality control is needed. This research is focused on reducing defects in red brick products at CV. Ghatan Fatahillah with the Six Sigma-DMAIC method (Define, Measure, Analyze, Improve, and Control). From the research results obtained DPMO of 36,212 with a sigma value of 3.29. The type of defect that most often occurs in red bricks is broken / broken, which is 4,327 or 59.81% of the total defective products. The results of the Analyze stage with the fishbone diagram showed that the causes of breakage / defects were determined, namely: workers do not understand quality standards, lack of product inspection, workers do not understand work procedures, unstable machine performance, workers are not careful, the number of mills is erratic, and composition erratic bricks. So it is necessary to make improvement proposals in order to reduce the number of defective products in red bricks. Keywords: DMAIC, DPMO, Quality Control, Six Sigma


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