• Journal of Korea Foundry Society
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• v.41 no.1
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• pp.26-38
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• 2021

The status of Ppuri industry, including foundry industry was analyzed through statistical surveys over the past 10 years from 2009 to 2018, and summarized for each six Ppuri industries' points of view. Various statistics of Ppuri industry defined by the KSIC (Korean Standard Industry Classification) was obtained, and the status of Ppuri industry was identified through a sample survey of 5,000 companies from more than 30,000 target business companies of Ppuri industry. Throughout the analyzing process, we presented a variety of indicators, such as the number of the Ppuri companies and its ratio, regional distribution through Korean provinces, number of workers, characteristics by age group, sales, profit rates, etc. By devising a comparative method to measure the relative strength of Ppuri industry in Korea, Germany, and Japan, we have presented the competitiveness index change over the 10 years of time. The competitiveness index can be effectively and meaningfully used during various activities of the development of Ppuri industry in the forth coming future. With the current obtained data, we figured out the status of each 6 Ppuri industries, regional distribution, status of workers, sales and profit rates. We also suggested various proposals for strategy and policy making for each sector with urging voluntary response from Ppuri industry.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2018.06a
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• pp.4-4
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• 2018

뿌리산업은 주조, 금형, 소성가공, 용접접합, 표면처리, 열처리등 소재를 부품으로 부품을 완제품으로 만드는 6대공정기술을 말하며 자동차, 기계, 전자, 반도체, 의료기기등 주력산업과 신산업 창출에 중요한 역할을 담당하나 3D업종인식, 저부가가치산업, 인력난문제가 있어 이를 해결하는 새로운 방향제시가 필요하므로 이에 대한 뿌리산업의 R&D방향에 대한 기획을 추진함.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.11
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• pp.308-320
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• 2017

The national government, as well as many regional governments, have supported the 'Ppuri industries', and the Daejeon region is in need of developing these sectors. Various research studies have examined the ppuri industries. However, there are limited studies concerning innovative activities and difficulties in the industries. Therefore, this paper focuses on firms' innovative activities and difficulties in the ppuri industries in the Daejeon region and provides policy implications. For this purpose, we surveyed firms supported by Daejeon Technopark's Ppuri industries programs, utilizing an innovation survey questionnaire developed by STEPI. We assumed that these firms have high intention for innovation among firms in the Daejeon's ppruri industries, and tried to identify characteristics and problems of innovative activities by comparing results with those of STEPI's Korean Innovation Survey. The results show that the overall pattern of innovative activities of Daejeon's ppuri industry firms do not differ from those found in the Korean Innovation Survey. However, there are a few notable differences. The rate of aborted innovation in the Daejoen's ppuri industries was higher than those found in the Korean Innovation Survey. Lack of financing was a major factor hampering innovation. These results provide policy implications that industrial and regional characteristics of ppuri industries must be reflected in the policy, and also policy measures for lowering the rate of aborted innovation.

• Journal of Information Technology and Architecture
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• v.11 no.4
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• pp.463-470
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• 2014

Recently, government supporting policies on the revival of manufacturing industries are building up in the advanced economies like US and so on. Root manufacturing industry as the base of all manufacturing industries is accounting for SMEs by an absolute majority and Korean policies for SMEs are apt to increase in numbers. Nevertheless, there is no much concern in the area of root manufacturing industry SMEs. Especially, the effectiveness of R&D in root manufacturing industry is on the verge of controversy. As the results of root manufacturing industry SME's analysis, there are lots of various characteristics by fields in root manufacturing industry and the R&D results are not well carried over to business commercialization. In this paper, five policy proposals for root manufacturing industry SMEs are suggested based on the current situations of domestic and overseas countries.

• Transactions of the KSME C: Technology and Education
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• v.1 no.2
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• pp.147-152
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• 2013

In this paper, we surveyed the opinion of MOTIE(Ministry of Trade, Industry and Energy) R&D PDs about what are the future promising industries and their mainly associated Ppuri-technologies. According to the survey result, the future technology trends are to shift the technologies beyond their own critical performance and dominate human-centered technologies through converging technologies. In particular, the 4 industries, personalized medical technology, intelligent and emotional-based system, solar power technology and flexible technology, are expected to be good perspective industries in the near future. In order to grow these industries, we need to develop the core Ppuri-technologies that are very closely related to the future main industries. More than all, Ppuri-technology acts as a leverage for the future promising industry and is expected to be the strong supporter in manufacturing infra.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2016.11a
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• pp.98.2-98.2
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• 2016

뿌리기술은 제조기술의 근본이 되는 주조, 금형, 소성가공, 용접, 열처리 그리고 표면처리기술로 소재를 가공하여 제품을 제작하는 기초기술입니다. 국내 뿌리기업의 경쟁력을 제고하기 위해서 기획된 '17년 첨단뿌리기술 분야의 산업기술에 대한 정부의 R&BD 전략을 소개할 예정이오니 뿌리기술과 관련된 기업, 학교, 연구기관의 기술개발 계획수립에 활용하시기 바랍니다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.2
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• pp.229-236
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• 2019

IOT middleware is required to play a pivotal role in interpreting, managing, and controlling data information of Internet devices (sensors, etc.). In particular, the root industry has different process flows for different industries, and there are various data processing requirements for each company. Therefore, a general purpose IOT middleware is needed to accommodate this. The IOT middleware structure proposed by this paper is a plug-in that can be used as an engine part for middleware basic processes such as communication, data collection, processing and service linkage, We propose a flexible and effective smart process for root industry. In addition, we propose a method to strengthen prevention and security against tampering, deodorization, etc. through encryption of network data between middleware plug - in and related service layer. We propose a system that will be developed as an IOT middleware platform that is specialized in the root industry so that it can be extended in various network protocols such as MQTT, COAP, XAMP.

• Journal of Korea Foundry Society
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• v.42 no.2
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• pp.83-93
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• 2022

Throughout this research course, we have analyzed the financial situation of more than 2,700 companies using credit evaluation disclosures from 2017 to 2019. The population was gathered based on the certification of Ppuri companies and Ppuri Expertise companies through the Korea National Ppuri Industry Center, accompanied by the NICE credit evaluation index. For the first time in Korea, we wanted to look at growth, profitability, and stability through financial analysis of the Ppuri industry. Through an indepth analysis, we identified operating income (rate), net income (rate), asset size, and debt ratio, along with three years of Ppuri company workers and total sales fluctuations, and looked at the financial structure per capita. In addition, financial status per person was compared by dividing Ppuri companies into six groups by employee size. Groups were 10 or fewer people, 11 to 20 people, 21 to 50 people, 51 to 200 people, 201-300 people, and 300 or more people; single individual companies were excluded for research convenience. Overall, the financial situation of Ppuri companies was judged to be in a very bad downturn, and financial indicators deteriorated over the course of the three years of investigation. In particular, the smaller the number of employees, the greater the financial fluctuations were and the worse the situations were. Among Ppuri companies, the casting industry, which is the technical starting point for the value chain of the industry, was found to also be in a very bad state, with continued workforce declines, total assets and sales reductions at severe levels, and operating income (rate) and net income (rate) also very poor. This is why we need a suitable and feasible policy direction, something that is difficult but must be allowed to develop.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.256-266
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• 2020

Spatial distribution analysis of industrial locations plays a very important role in the establishment of relevant spatial policies and plans. The first thing to consider in this analysis is what analysis indicators and spatial units are used, because the interpretation of the analysis results may vary depending on the analysis indicators and the spatial units. Therefore, this study first examines various industrial integration indicators considering spatial autocorrelation and suggests the classification of regional types of industrial aggregation through the combination of related indicators. And then, this paper aims to empirically analyze the root industry by presenting a methodology for analyzing industrial integration by various spatial units such as individual locations, grids, and administrative districts. The results of the empirical analysis show that the grid in the spatial unit can be analyzed in more detail than the administrative unit. In addition, it is expected to overcome the limitations such as differences in interpretation that may occur due to the setting of spatial units. In the classification of regional types, the south-eastern region of Ulsan, Busan, and Changwon, and the western region of the SMA of Incheon, Hwaseong, and Ansan were analyzed as the industrial cluster type.

• Transactions of Materials Processing
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• v.32 no.5
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• pp.247-254
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• 2023

This study conducted the wear tests on bending punches coated with PVD CrN and examined the surface quality of the product formed by each punch in the forming of uncoated TRIP1180 sheets. The study quantitatively estimated the surface quality of the product by measuring the roughness and imaging the product surface. The correlation between the punch wear depth and the product surface roughness was quantitatively analyzed. The results showed that before failure occurs, the product roughness was comparable with that of the as-received, and the product surface was smooth without scratches and defects. However, after failure, the punch wear is caused by fretting wear mechanism, and a punch whose coating is not completely peeled plows the product surface, resulting in severe scratches with grooves and ridges on the product surface. Severe wear on the punch surface caused by fretting wear can rapidly degrade the product surface quality as it is directly affected by the punch surface condition, and the product surface quality accurately reflects the punch wear condition.