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All Journal Jurnal Rekayasa Mesin Jurnal Manajemen & Supervisi Pendidikan
Bambang Tjahjono
Jurusan Teknik Mesin, Politeknik Negeri Semarang Jl. Prof. H. Soedarto, S.H. Tembalang, Semarang 50275. PO BOX 6199
Decision Sciences, Operations Research & Management Education Mechanical Engineering

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Desain dan Pembuatan Mesin CNC Milling untuk Pembuatan Ukiran Kerajinan Kayu Sunarto, Sunarto; Hartono, Hartono; Carli, Carli; Daryadi, Daryadi; Tjahjono, Bambang; Setiyawan, Trio
Jurnal Rekayasa Mesin Vol 17, No 1 (2022): Volume 17, Nomor 1, April 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i1.3496

Abstract

The furniture industry is an industry that processes raw materials or semi-finished materials from wood, rattan and other natural raw materials into finished products that are ready for use and have higher added value. There are many furniture industries spread across Indonesia, with quite large centers located in Jepara, Sukoharjo, Surakarta, Klaten, and others. Along with the development of industrial technology, making work becomes more efficient and easier. Therefore, it is necessary to apply technology in the industrial world in Indonesia, especially in the furniture industry. The current technology commonly applied to the furniture industry is the CNC milling machine. The use of this CNC machine aims to solve problems in the production of wood carving crafts or furniture, such as mass products that cannot be the same and product processing time that cannot be ascertained. Besides, the use of this CNC machine can reduce cycle times and increase the work efficiency of the furniture industry. Based on this information, we had the idea to make this CNC milling machine to support the progress of the Indonesian furniture industry. During the manufacturing of this CNC machine, we carried out theoretical research and field surveys. The research stages we carried out were identification of needs, problem formulation, synthesis, analysis, evaluation and presentation. Based on these results, it was found that the workable raw material had a maximum dimension of 40 × 40 [cm], a maximum feed rate of 192 [mm/min], a maximum spindle rotating speed of 12,000 [rpm] and a cutting velocity of 75.4 [m/min].
Rekayasa Metal Slipper pada Brake Shoe Sepeda Motor untuk Meningkatkan Produktifitas: Studi kasus di PT Mitrametal Perkasa Alfauzi, Abdul Syukur; Ardjo, Anwar Sukito; Tjahjono, Bambang; Purnomo, Adhy; Bagas, Alfian; Saputra, Eko; Harmanto, Sri
Jurnal Rekayasa Mesin Vol 17, No 2 (2022): Volume 17, Nomor 2, Agustus 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i2.3721

Abstract

Brake Shoe merupakan komponen penting pada sistem pengendalian kendaraan bermotor. Proses pemasangan Brake Shoe terhadap metal slipper pada mesin press di PT. Mitrametal Perkasa, masih dilakukan dengan menggunakan tuas manual. Hal ini menyebabkan kualitas pekerjaan tidak maksimal, operator cepat kelelahan, proses tekan masih menggunakan gaya yang bervariasi sehingga mengakibatkan hasil kualitas produk yang berbeda-beda. Permasalahan tersebut menyebabkan hasil produk tidak seragam dan waktu produksi tidak efisien. Oleh karena itu penelitian ini penting dilakukan untuk meningkatkan produktifitas perakitan brake Shoe. Tujuan penelitian ini adalah menurunkan waktu perakitan brake shoe sepeda motor terhadap metal slipper dengan membuat perancangan dies dengan mesin press hidrolik semi otomatis agar dapat mengurangi cycle time dan mampu meningkatkan produktivitas. Metode penelitian menggunakan Root Cause Analysis (RCA) yang meliputi fishbone diagram, dan pengujian alat. Hasil yang diperoleh dari hasil pengujian yaitu cycle time sebesar 10,171 detik, gaya tekan sebesar 67,824 N, dan gaya tekan minimum yang diijinkan sebesar 1010,65 N. Kesimpulan yang diperoleh adalah penelitian ini dapat menurunkan cycle time sebesar 16,528% dan meningkatkan kapasitas produksi sebesar 400 produk per hari.
MANAJEMEN PELATIHAN VOKASIONAL BAGI PENYANDANG DISABILITAS DAKSA Tjahjono, Bambang
JMSP (Jurnal Manajemen dan Supervisi Pendidikan) Vol 1, No 2 (2017): Vol. 1 No. 2 Maret 2017
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.015 KB) | DOI: 10.17977/um025v1i22017p128

Abstract

Abstrak: This research study was aimed at describing the implementation of the managementof the educational and vocational training in order to improve the human resource quality ofphysically handicapped, discovering the supporting factors, and revealing any solution tothe emerging obstacles. This research used the qualitative approach and description methodto yield the information about the management of vocational trainings of the physicallyhandicapped. The data were selected using the purposive tecknique covering by the DivisionHeads, Section Heads, instructors, and the training participants. The data were collectedthrough indepth interviews, observation, and document, conducted by the triangulationmechanism of the answers to the research subjects. The result of the research shows thattraining’s result not yet able to push the physically handicapped peoples up to have morecapability. They are not yet own enough job skill which can be used to look for a job as aproperty to face the life going, although socially they have been able to do the relationshipwith the society in a proper ways.keyword: Management, vocational training, physically handicappedAbstrak: Penelitian ini bertujuan untuk mendeskripsikan pelaksanaan manajemen pelatihanvokasional dalam upaya meningkatkan kualitas sumber daya manusia penyandang disabilitasdaksa serta untuk menemukan faktor kekuatan menemukan solusi terhadap tantangan yangmuncul. Penelitian ini menggunakan pendekatan kualitatif dan metode deskripsi untukmenghasilkan informasi tentang manajemen pelatihan vokasional penyandang disabilitasdaksa. Pemilihan informasi data dilakukan dengan teknik porpusive meliputi para kepalabidang, para kepala seksi, instruktur/pembimbing, dan peserta pelatihan. Dalam pengumpulandata, digunakan teknik wawancara, observasi, dan telaah dokumen. Ketiganya dilakukandengan mekanisme trianggulasi atas jawaban-jawaban subyek penelitian. Hasil penelitianmenunjukan bahwa hasil pelatihan belum mampu mendorong penyandang disabilitas daksake arah yang lebih berdaya. Mereka belum cukup memiliki keterampilan kerja yang dapatdigunakan untuk mencari pekerjaan sebagai modal menghadapi kehidupannya, meskipunsecara sosial sudah mampu melakukan relasi dengan masyarakat secara wajar.Kata kunci: manajemen pelatihan, penyandang disabilitas daksa
Co-Authors Alfauzi, Abdul Syukur Ardjo, Anwar Sukito Bagas, Alfian Carli Carli Daryadi Daryadi Eko Saputra Hartono Hartono Purnomo, Adhy Setiyawan, Trio Sri Harmanto Sunarto Sunarto