SIX SIGMA IMPLEMENTATION IN INDONESIA INDUSTRIES AND BUSINESSES: A SYSTEMATIC LITERATURE REVIEW

Understanding quality in manufacturing starts with defect identification and improvement finding. Reliability that influenced by equipment design or working methods or environment has led to concept of improvement with six sigma method and this has been absorbed in Indonesia industries as well. This article discusses about six sigma implementation in Indonesia from various business and industries. The method is to review research articles that are published within 2016-2020 with keyword DMAIC and six sigma. The results from 52 selected articles is obtained average 3.68 sigma value of Indonesia industries within year 2016-2020 with the least value 1.10 from crude palm oil refinery and the highest is 5.10 from bagging process of sugar refinery. However, six sigma application is not always satisfying concerning its suitability function, requirement of industries, culture, local regulation, and internal business concern, especially in terms of efficiency and cost. Future research is suggested utilizing industry 4.0 concept to enhance six sigma implementations.

AN ANALYSIS OF INDONESIAN MILKFISH UPSTREAM SUPPLY CHAIN: SYSTEM DYNAMICS APPROACH

Milkfish is common aquaculture product consumed by Indonesian people. However, the ponds of milkfish in Indonesia manage by Small Medium Enterprises scale of farmers which have problems in sustaining the business. This study proposes supply chain analysis in the upstream level to develop strategic to improve the profit of milkfish farmers. Milkfish supply chain is a network of many actors that work together to create and deliver milkfish and its culinary products to the end-user. This paper defines the partnership strategies between the farmers and suppliers as well as the support from government as facilitator and regulator. Moreover, system dynamic approach analyses the scenarios of partnership to outline the benefit obtain by the milkfish supply chain. Finally, the simulation results recommend the partnership to fertilizer supplier will give significant increase in profit of the milkfish farmers.

A STUDY ON TECHNOLOGY TREND OF CAMERA BY USING FI CODE IN JAPANESE PATENT

In development of technology and product, it’s important to make decisions based on technology trend. Some previous studies obtained technology trend based on patent information. In our previous study, we tried to investigate the state of innovation and the emergence of dominant design by using patent information. We analyzed inkjet printers and NC machines with theme codes and F term codes in Japanese patent classification codes. In this study, we tried to know the change of technology of other products other than inkjet printers or NC machines by using patent information. The target product of this study is camera. Camera products changed its key technology of imaging and recording from analogue film to digital imaging sensor and semiconductor memories. We attempted to obtain this change by using patent information.

ANALYSIS OF THE LEVEL OF READINESS FOR THE APPLICATION OF ONE VILLAGE ONE PRODUCT IN THE SMALL AND MEDIUM BATIK TULIS INDUSTRY IN SIDOARJO DISTRICT

This study aims to determine the level of readiness of the Batik Tulis Small and Medium Industry in Sidoarjo district in implementing One Village One Product (OVOP) by mapping the assessment criteria based on the Internal Factor Evaluation (IFE) and External Factor Evaluation (EFE) matrices, as a first step in conducting analysis using the Strengths, Weakness, Opportunities, and Threats (SWOT) method. OVOP is a way to develop the potential of an area that was pioneered by Dr. Morihiko Hiramatsu has succeeded in alleviating poverty in Japan's Oita Prefecture through the Japan External Trade Organization (JETRO) by motivating the economies of several developing countries albeit under different names. Base on the identification of the performance of 30 small and medium industries (SMI) spread across 5 batik centers, it can be seen that the level of readiness is 81%. The results of the 82 evaluation criteria means that the product quality is good and has been classified as 4 star even though the marketing area is only in the country. So that the value still needs to be increased on several indicators (A). Aspects of Production, Product and Community Development, (B). Marketing Aspects and Product History, (C). Aspects of Product Type, Quality, and Market Opportunities. Of the 25 indicators of OVOP product assessment for the batik category, when mapped in the IFE matrix, 8 are seen as strengths and 4 of weakness, while in the EFE matrix, 7 of opportunity and 6 of threats are seen.

OPTIMIZATION OF VARIABEL HELIX ANGLE PARAMETERS IN CNC MILLING OF CHATTER AND SURFACE ROUGHNES USING TAGUCHI METHOD

In the manufacturing industries, the main problem in process of operating CNC milling machine was chatter effect (self-excited vibration) which increases the quality of the surface roughness. In this study is to determine optimal value of parameters for chatter and surface roughness. The chatter measured using accelerometer MPU-6050 with Arduino by software LabVIEW-2019 based on peaks-FFT value and the surface roughness measured by SJ-301 tester. The research parameters like variable helix angle, spindle speed, feed rate, and depth of cut using stainless steel 304 by Taguchi method. The optimum parameters value obtained are variable helix 35/38 degrees, spindle speed 3000 RPM, feed rate 150 mm/min and depth of cut 0.4 mm. Based on ANOVA value, the variable helix angle and depth of cut are found to be significant for chatter and surface roughness. The depth of cut was high contribution by ANOVA chatter by 93.84% and surface roughness by 91.93%.

PRODUCTION MACHINE INFORMATION SYSTEM BASED ON TECHNOLOGY GROUP IN RELATIONAL DATABASE ENVIRONMENT

The world is entering industry 4.0. The digital enlarges to machine maintenance known as troubleshooting. Troubleshooting is a series of actions needed to deal with machine damage treatment. Problems that often occur in troubleshooting are that technicians are not in the location, the information is still in the form of printed books, the risk of books being lost, books slipping, and the location of books far from the location of machine failure. This research was to solve this problem by developing an application called Production Machine Troubleshooting Information System (SITMEP) in relational database environment. This system was developed by integrating several methods such as machine damage knowledge obtained from tacit sourced from mechanical technicians, experts in their fields and explicit knowledge sourced from machine manual books. GT is to combine knowledge with machine hierarchies and it supports systems for database and SQL. The tool used was MS Access with VBA.

WORK SAMPLING METHOD FOR ANALYSIS OF PERFORMANCE AND DETERMINING THE NUMBER OF WORKERS IN THE WAREHOUSE DEPARTMENT

Industrial competition demands that each company be effective and efficient, hence companies need to make optimal use of resources. The purpose of this research is to determine the productivity of the workers in completing their work and to discover how much workload is caused by the activities carried out. In addition, recommendations for improvements were also given as an effort to reduce the high rate of overtime hours and determine the appropriate number of the workforce at spare parts and raw materials division. The results showed that some workforces have an uneven workload. Meanwhile, based on the results of workload analysis, it can be seen that the workload of the warehouse feeder is classified as a high workload, which is 102%.

ANALYSIS ON VOLUMETRIC SHRINKAGE OF PLASTIC FOOD CONTAINER MADE FROM AN INJECTION MOLDING PROCESS

The plastic injection molding process is one of the widely used of the manufacturing process to manufacture the plastic product with high productivity. Moreover, the food packaging manufacturing industry undergoes the trials and errors to obtain the optimal setting of the process parameters in order to minimize the quality issues and these trials and errors are time consuming and costly. The aim of this study is to improve the quality of the butter tub by minimizing the volumetric shrinkage. This study is to deal with the application of Moldflow integrating with the statistical technique to minimize the volumetric shrinkage the butter tub which depends on the process parameters of the plastic injection molding. For this purpose, the rectangular shape of butter tub is designed by utilizing the SolidWorks. Molflow is used to simulate the plastic filling of the single cavity mold of butter tub based on the Taguchi’s �!" orthogonal array table. In addition, the analysis of variance (ANOVA) is applied to investigate significant impact of the process parameters on the quality of the butter tub. Minitab is used to optimize the response of the volumetric shrinkage by selecting the most appropriate process parameters that maximizing the desirability value. Furthermore, the butter tub has a uniform thickness which was 1.2 mm and its factor of safety was 3.383 and the volumetric shrinkage response have optimized by 0.956 %. The melt temperature and mold temperature are found to be the most significant process parameters for the plastic injection molding process of butter tub and the volumetric shrinkage value obtained from the simulation is verified by the calculated volumetric shrinkage value.

DEVELOPMENT OF BUSINESS STRATEGIES USING QSPM AND SWOT ON SNAIL CHIPS

Strategy in the snail chips business is the topic of this research. The purpose of this study is to determine the position of the company based on the SWOT results and the sequence of alternative strategies found on QSPM. The stages of this research were to make observations at PT.X to determine the strengths, weaknesses, opportunities, and threats of the snail product. The results obtained by the company lie in quadrant II with a suitable strategy to increase resistance to reduce the danger that comes, while the order of the choice of method is first to strengthen cooperation with new collectors, second to improve quality better than competitors, third to plan delivery schedules if the volume of demand increases. Suggestions that can be used by related companies are implementing alternative strategies on an ongoing basis and periodically evaluating them.

THE EFFECTS OF r-HDPE/r-PP FORMULATION RATIO INTO MECHANICAL, THERMAL AND MORPHOLOGICAL BEHAVIOR OF r-HDPE/r-PP POLYMERIC BLENDS

This study has reported the effects of different formulation ratio between recycled high density polyethylene (r-HDPE) and recycled polypropylene (r-PP) into the resulted mechanical, thermal and morphological properties of r-HDPE/r-PP polymeric blends. About five (5) different formulation ratio of r-HDPE/r-PP have been prepared and tested. The best combination ratio between r-HDPE and r-PP was determined in this work. It was found that the 70/30 wt.% of r- HDPE/r-PP blend possessed an outstanding mechanical and physical strength. About 59.80% and 2.30% of positive improvement in comparison to 0/100 wt.% of r-HDPE/r-PP was achieved for both of tensile strength and hardness, respectively. Interestingly, for 70/30 wt.% of r-HDPE/r-PP blend had also experienced major increased in their elongation at break up to 473%. The fracture morphological behavior of the tested samples that were observed via SEM observation, had established the interaction between the structure and properties of produced r-HDPE/r-PP blends, especially on the miscibility state between the r-HDPE and r-PP phases. Thermal evaluation by using the DSC had confirmed the partial miscibility state due to dominant peak shifting at 120 - 140°C and obvious melting peak reduction pattern. Overall, from this study, it was found that the blending between r-HDPE and r-PP into r-HDPE/r-PP blends are feasible to improve the properties of primary phase.