Article Per Year (5 Year)
p-Index From 2020 - 2025
0.751
P-Index
This Author published in this journals
All Journal International Journal of Research in Vocational Studies (IJRVOCAS) JURNAL POLI-TEKNOLOGI International Journal of Applied Business and International Management
Ahmad Zamheri
Politeknik Negeri Sriwijaya
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Study Leaf Spring for Punch in Press Tools Ahmad Zamheri; Azharuddin; Wirda Novarika
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 1 (2022): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i1.93

Abstract

The development of technology in the material sector is currently very fast, it can be seen from the many uses of metal materials, especially in the mass production industry with certain specifications, such as stainless steel, high carbon steel, and tool steel. Home industries such as the manufacture of rings, pans, bottle caps, stove components and others often use these materials as materials to make tools called press tools. In this press tool, high carbon steel or tool steel is mostly used as a punch, but as the cost and difficulty of these materials make home industries suffer big losses for the manufacture of production tools. For this reason, through this study the authors conducted experiments in the laboratory on recycle leaf spring materials. The experiment was carried out in four stages of testing, namely composition test, tensile test, hardness test, and microstructure test. The composition of elements of the recycle leaf spring are 0.6627% Carbon (C), 0.7304% Manganese (Mn), 0.0240% Sulfur (S), 0.0257% Phosphorus (P). The tensile strength of recycle leaf springs is 1332.5 kg/mm2. The hardness is carried out with the Rockwell C hardness test, the result of the test is 52.5 HRC. There are elements of martensitic and austenite in the microstructure test. The results of the laboratory experiments were compared with the data in the literature, so this recycle leaf spring material could be used as a substitute for cutting blades in press tools.
The Mediation of Tourist Engagement on The Effect of Destination Quality on Tourist Loyalty Dhea Radika Putri; Ahmad Zamheri; Sari Lestari Zainal Ridho; Paisal Paisal; Fernando Africano
International Journal of Applied Business and International Management Vol 7, No 1 (2022): April 2022
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.464 KB) | DOI: 10.32535/ijabim.v7i1.1437

Abstract

This study aims to examine and analyze: The effect of destination quality on tourist engagement, the effect of destination quality on tourist loyalty, the effect of tourist engagement on tourist loyalty and the effect of destination quality on tourist loyalty mediated with tourist engagement. The data analysis method uses a structural equation model. The research sample is tourists who have visited natural tourist destinations in South Sumatra totaling 320 respondents.  The results of this study prove that the destination quality affects tourist engagement.  Destination quality affects tourist loyalty.  Tourist engagement affect tourist loyalty.  Tourist engagement mediates the effect of destination quality on tourist loyalty. The implication of this finding explains that tourist engagement driven by destination quality will be able to increase tourist loyalty. 
PENGARUH PARAMETER PROSES TERHADAP DIMENSI CASING GEAR DENGAN PRODUKSI MENGGUNAKAN TEKNOLOGI 3D PRINTER DLP (DIGITAL LIGHT PROCESS) Dicky Seprianto; Ahmad Zamheri; Almadora Anwar Sani; Nanda Yusril Mahendra
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3614

Abstract

DLP (Digital Light Process) 3D Printer Technology is a 3 dimensional printing machine made from resin with a lighting system using a light projector with a layer-by-layer printing process. In this research, the writer will make an object, which is one of the machining components, namely the gearbox casing. In this study the authors will analyze the effect of process parameters (exposure time, off time, and their interaction) on the dimensions of the printout and get the most optimal parameters to be applied to components or printing objects. In conducting testing, the measurement of the tester’s dimensions uses the Krisbow KW06-422 calipers. Then the measurement data is processed by the Anova method with the help of software design expert version 10. After the research process obtained the results that the most influential parameters are the interaction factor between exposure time parameters and off time parameters on the dimensions of the printed objects, and the most optimal combination of parameters is found in the exposure time parameters 10 second and off time 1 second with a level of precision of 95%.
Co-Authors Africano, Fernando Almadora Anwar Sani Azharuddin Dhea Radika Putri Dicky Seprianto Nanda Yusril Mahendra Paisal Paisal Sari Lestari Zainal Ridho Wirda Novarika