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박종남,김재열,조규재,Park, Jong-Nam,Kim, Jae-Yoel,Cho, Gyu-Jae 한국생산제조학회 2010 한국생산제조학회지 Vol.25 No.3
The Titanium has many superior characteristics which are specific strength, heat resistance, corrosion resistance, organism compatibility, non-magnetic and etc. and their quantity are abundant. this study performed turning operation of Ti-6Al-4V alloy using the TiAlN Coated Tool which treated Physical Vapor Deposition. Experimental works are also executed to measure cutting force, tool wear, chip figuration and surface roughness for different cutting conditions. As a result of study. Cutting depth influences on the cutting force much more than the feed rate and the value of the cutting force is the most stable at the depth of 1.0mm. And tool wear was serious at over 100m/min of cutting speed and cutting condition was excellent at 1.0mm of cutting depth.
박종남,정성택,조규재,Park, Jong-Nam,Jeong, Seong-Taek,Cho, Gyu-Jae 한국기계가공학회 2003 한국기계가공학회지 Vol.2 No.2
Composite materials are widely used to make all kinds of machine parts, internal and structural materials of cars, aerospace industries, building structures, ship materials, sporting goods and others. It is worth the while to use composite materials as various substitutions when compared With others. But the use is limited in the field of the mechanical processing because of its difficulties in cutting. The surface roughness of in and out in the hole processing was discussed after cutting the GFRP with HSS drill in the vertical machining center. And it is observed that as it processed more, the powdered chip may be got more than the fluid type long chip.
선삭가공시 Ti-6Al-4V 합금의 절삭특성에 관한 연구
박종남,조규재,이승철,Park, Jong-Nam,Cho, Gyu-Jae,Lee, Seung-Chul 한국기계가공학회 2004 한국기계가공학회지 Vol.3 No.4
The titanium has many superior characteristics such as specific strength, heat resistance, corrosion resistance, organism compatibility, non-magnetic and etc. and their quantity are abundant. This study performed turning operation of Ti-6Al-4V alloy using the TiAlN coated tool which was treated with PVD. Experimental works were also executed to measure cutting force, chip figuration and surface roughness for different cutting conditions. As a result of study, tool wear was serious at the condition over 100m/min of cutting speed. The excellent cutting condition of cutting depth was at 1.0mm.
박종남(Jong-nam Park),김재열(Jae-yoel Kim),조규재(Gyu-jae Cho) 한국생산제조학회 2010 한국생산제조학회지 Vol.19 No.1
The Titanium has many superior characteristics which are specific strength, heat resistance, corrosion resistance, organism compatibility, non-magnetic and etc. and their quantity are abundant. this study performed turning operation of Ti-6Al-4V alloy using the TiAlN Coated Tool which treated Physical Vapor Deposition. Experimental works are also executed to measure cutting force, tool wear, chip figuration and surface roughness for different cutting conditions. As a result of study. Cutting depth influences on the cutting force much more than the feed rate and the value of the cutting force is the most stable at the depth of 1.0㎜. And tool wear was serious at over 100m/min of cutting speed and cutting condition was excellent at 1.0㎜ of cutting depth.
SAPH400의 CO₂ 레이저 절단시 절단특성에 관한 연구
박종남(J. N. Park),조규재(G. J. Cho) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
In the cutting of plate steel, the quality of the cut surfaces is strongly dependent on the cutting conditions such as cutting speed, plate thickness, power, kerf width and gas pressure etc. The cutting tests of Steel Automobile Press Hot were carried out using CO₂ Laser cutting machine. The kerf width and surface roughness of a section are examined at various cutting conditions. This paper deals with cutting characteristics of Steel Automobile Press Hot(SHPH400) using CO₂ Laser Cutting Machine.
데이터 리터러시와 데이터 분석 성숙도의 관계에서 조직문화의 조절효과
박종남 ( Park Chong-nam ),조예은 ( Cho Yee-un ) 한국정보화진흥원 2021 정보화정책 Vol.28 No.1
최근 빠르게 변화하는 내·외부 환경에 대응하기 위해 데이터 분석 역량이 강조되고 있다. 본 연구는 조직문화가 데이터 기반 성과창출의 결정적인 역할을 한다는 점에 주목하여 조직문화 유형에 따른 데이터 리터러시와 데이터 분석 성숙도의 관계를 실증적으로 규명하였다. 첫 번째 분석 주제인 데이터 리터러시와 데이터 분석 활용도의 관계에서는 조직 구성원의 데이터 리터러시가 높을수록 조직의 데이터 분석 성숙도가 높다고 인식하고 있었다. 두 번째 주제인 조직문화와 데이터 분석 활용도의 관계를 살펴보면, 조직 구성원이 조직의 문화를 관계지향 문화와 혁신지향 문화라고 인식할수록 데이터 분석 성숙도가 높아진다고 인식하고 있다. 세 번째 분석인 데이터 리터러시와 데이터 분석 성숙도의 관계성은 관계지향 문화와 위계지향 문화에 의해서 달라짐을 발견하였다. 관계지향 문화는 데이터 리터러시가 데이터 분석 성숙도 인식에 미치는 영향에 대한 상승효과로 나타났으나, 위계지향 문화는 완충효과가 있는 것으로 나타났다. The purpose of this research is to examine the relationships among data literacy, organizational culture, and data analytics maturity and the moderating effects of organizational culture. Analysis of the relationship between data literacy and data analytics maturity shows that the higher the data literacy competency of employees, the higher the organization’s data analytics maturity. In examining the relationship between organizational culture and data analytics maturity, it is found that relationship culture and innovation culture are positively related to data analytics maturity. In addition, relationship culture and hierarchy culture show significant moderating effects. Relationship culture shows a synergistic effect, whereas hierarchy culture has a bufer effect between data literacy and data analytics maturity.