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All Journal TEKNIK Journal of Mechanical Engineering Science and Technology Journal of Education Research Indonesian Community Journal

Imam Muhtarom

Universitas Negeri Malang, Indonesia

Author-ID : 3224899

Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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Analysis of Casting Defect, Tensile Strength, and Hardness of Al-Si Casting Alloy with Percentage Variation of Clay Binder Bangkalan Imam Muhtarom; Sunomo Sunomo
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

Casting is one of method that used in forming the work piece by melting specific metal and pouring into moulding that has been prepared. This study aimed to determine the effect of the use of Bangkalan clay as binder in sand moulding against tensile strength, hardness, and defects in Al-Si casting alloy by using gravity casting method. The method used in this study was experimental method then using descriptive analysis. Descriptive analysis included explanation of the test result of tensile strength, hardness, and the type of surface defect of Al-Si casting. Based on the research result obtained the highest shear strength in wet condition obtained on sand moulding which had the highest tensile strength, that was sand moulding with composition of 12% Bangkalan clay, and 0.5% bentonite. While the highest hardness value of Al-Si casting result obtained on specimen with variation of 12% Bangkalan clay with the value of 131.9 HV. Casting defects that appeared on the surface of all casting product variations. The defects that found were fin defects, pinhole defects, sand loss defects, and surface roughness. Based on the result above, could be concluded that variation of 9% Bangkalan clay and 0.5% bentonite as binder was the best variation.

Pine Flower Waste Innovation As A Plant Based Program Augmented Reality Ayik Bela Saputra; Imam Muhtarom; Ni’matul Rochmaniyah; Ardhana Iswari Citra Padmi; Ika Rahmawati
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 1 (2018)
Publisher : Universitas Negeri Malang

Indonesia one of the tropical countries in the world can not be separated from environment problems like other developing countries. One of the causes of declining environment quality is the decline of forests in Indonesia. In 2009, Indonesia’s forest area was by more than half, to about 88 million hectares. By the year 2013 the number is about 82 million hectares. One of the efforts to promote environment education is to familiarize planting plants to children from an early age from the school environment to the family environment. Therefore it is necessary an alternative in the form of planting media that can be used as a trigger tool of environmental care attitude and can feel the sensation of planting that educative by utilizing pine flower waste as an attractive and environmentally friendly planting medium. Besides as a planting medium is also intended as a instructional media especially elementary school students to high school students. This is because the planting medium has a goal to give an educative impression through information on plant species being planted and to increase awareness of the surrounding environment. If used as a medium of learning this planting media will bring up information about the plant being planted by way of scanning pot characters with gadgets then information about the classification of plants, root shapes, stems, leaves, flowers, how

Co-Authors Ardhana Iswari Citra Padmi Ayik Bela Saputra Chintia Dwi Wangsa Kuswardani Danang Yugo Pratomo Dewi Herlina, Dewi Dian Julianto Wahyudi Dwi Rahdiyanta Farhan Rizki Hafidz Ika Rahmawati Nikmatus Sholikha Ni’matul Rochmaniyah NURAINI, RANI Putra Gana Wacana Rahmad Putra Ardyansyah Ramadhan Dwi Widodo Ridwan Aditiya Fauzi Saifuddin Karim Salman Fawwas Albaihaqi Sandy Eka Apriliansyah Sayyid Nur Rohman Sunomo Sunomo Syifa Sukma Araya Tamara Rahma Widowati Yayi Febdia Pradani Yuangga Mahendra Dwi Putra Zaky Fatkhur Naufal Afif Malik

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