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Evaluasi Ketangguhan Alumunium terhadap Beban Dinamis melalui Pengujian Impak Charpy Takikan V Trisanti, Trisanti; Susanto, Dian; Kasda, Kasda; Rachman, Maulana; Irawan, Yusril
MESA (Teknik Mesin, Teknik Elektro, Teknik Sipil, Teknik Arsitektur) Vol. 7 No. 1 (2023): MESA (Teknik Mesin, Teknik Elektro, Teknik Sipil, Teknik Arsitektur)
Publisher : FAKULTAS TEKNIK UNIVERSITAS SUBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35569/ftk.v7i1.1949

Abstract

This study evaluates the toughness of aluminum against dynamic loads through V notch Charpy impact testing. Tests were conducted on aluminum specimens with varying temperatures to observe their effect on impact energy, fracture type, and transition temperature. The methodology involved the use of an impact machine to present consistent and reliable data. The main findings include the influence of V notches on the impact characteristics of aluminum, identifying critical zones that may experience deformation or cracks. Results show that impact energy and the predominance of ductile fracture increase with higher temperatures. At low temperatures, brittle fracture is dominant. A transition temperature curve was successfully drawn, showing the change in material properties from ductile to brittle. It has been demonstrated that V notch Charpy impact testing is useful for evaluating aluminum toughness and can help improve the design and safety of aluminum components in dynamic load applications.
Analisis Kinerja Mesin CNC Milling 3 Axis pada Pembuatan Pipa Jet Oil Trisanti, Trisanti; Susanto, Dian; Atmadja, Ifan Haristian
MESA (Teknik Mesin, Teknik Elektro, Teknik Sipil, Teknik Arsitektur) Vol. 8 No. 1 (2024): MESA (Teknik Mesin, Teknik Elektro, Teknik Sipil, Teknik Arsitektur)
Publisher : FAKULTAS TEKNIK UNIVERSITAS SUBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35569/ftk.v8i1.1950

Abstract

The study evaluated the performance of a 3-axis CNC milling machine in the production of jet oil pipes with a focus on achieving a high level of precision. Through variation of cutting parameters and feeding speed, the machine succeeded in reaching the industry standard for jet oil pipe production. Optimization of parameters improved production efficiency, demonstrated by results that achieved the desired precision tolerance. Cutting tool wear analysis provides insight into machine performance and possible repair actions. This research confirms the potential of 3 axis CNC milling machines in addressing the challenge of high-precision jet oil pipe production, contributing to the development of CNC Milling technology in the context of the oil and gas industry.
Perlindungan Hukum Terhadap Anak Korban Tindak Pidana Kekerasan Oleh Dinas Pemberdayaan Perempuan, Perlindungan Anak, Pengendalian Penduduk, dan Keluarga Berencana (Dp3ap2kb) Kota Padang Trisanti, Trisanti; Zurnetti, Aria; Khairani, Khairani
UNES Law Review Vol. 6 No. 1 (2023)
Publisher : Universitas Ekasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31933/unesrev.v6i1.916

Abstract

Children are very vulnerable to becoming victims of crime, many children are targets of acts of violence. In Padang city violence against children in 2021 there was 63 cases of violence recorded. Based on Article 59 paragraph (1) of Law Number 35 of 2014 concerning Child Protection, local governments are obliged to provide protection for child victims. This research focuses on two issues, First: How is the legal protection of child victims of violent crimes committed by DP3AP2KB Padang City, Second: How is the implementation of legal protection for child victims of violent crimes committed by DP3AP2KB Padang City.This study uses empirical juridical research methods with analytical descriptive characteristics. Sources were obtained from interviews, reports and documents. Secondary data comes from related laws and regulations, articles, journals, and internet sites. The results of the research, First, the legal protection carried out by DP3AP2KB is to provide consulting services and legal process assistance to ensure the fulfillment of children's rights so that they can recover and be able to carry out social functions in their environment, social field. Second, the implementation of legal protection for child victims of violent crimes by DP3AP2KB experienced several obstacles, namely a lack of human resources, a lack of special experts such as child clinical psychologists and a lack of budget, facilities and infrastructure. so it must coordinate with other agencies.