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Ditemukan 12 dokumen yang sesuai dengan query
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Sriati Djaprie
Depok: Universitas Indonesia, 1994
LP-Pdf
UI - Laporan Penelitian  Universitas Indonesia Library
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Lashko, N.
Moscow: Mir Publishers, 1979
671.56 LAS b (1)
Buku Teks  Universitas Indonesia Library
cover
Abstrak :
Principles of Brazing is a valuable resource for those working with the brazing process or designing component joints. This book will help solve practical engineering challenges, by building on fundamental metallurgy. Precisely written, and well referenced, containing 200 figures and 56 tables, this book compares joining methods, explains the fundamental parameters of brazes, and surveys the metallurgy of braze alloy systems. The joining atmosphere, fluxes and fluxless brazing are investigated. The constraints that component metal and non-metal materials place on the brazing process are examined. A chapter is devoted to the direct brazing of non-metals. Jewelers will find the chapter on filler metals for gold and silver of interest. The authors received valuable feedback from readers of their first book, Principles of Soldering and Brazing.
Materials Park, Ohio: ASM International, 2005
e20442558
eBooks  Universitas Indonesia Library
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Schwartz, Mel M.
Abstrak :
Text provides information needed to braze materials that will be used in the 21st century. Revised to include lessons learned on tooling, design, materials, atmospheres, processing, and equipment. For brazing technologists and engineers.
Materials Park, Ohio: ASM International, 2003
e20442658
eBooks  Universitas Indonesia Library
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Abstrak :
The topics addressed in this proceedings volume include active brazing (an area of increasing R&D interest); conventional brazing an soldering alloys; wetting and fundamental properties studies; modeling and mechanical analysis and/or characterization; and process technology. All of the papers in this volume have been editorially reviewed. Both the hardcopy and CD contain an author s index for easy reference, and the CD volume is fully searchable by keyword.
Materials Park, Ohio: ASM International, 2006
e20451907
eBooks  Universitas Indonesia Library
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Humpston, Giles
Abstrak :
If you work with soldering processes or soldered components, Principles of Soldering will help you understand and solve practical engineering challenges. Clearly written and well referenced, this book takes you from the fundamental characteristics of solders, fluxes, and joining environments to the impact these have in the selection and successful use of soldering processes. Priority is given to the fundamental principles that underlie this field of technology rather than recipes for making joints. Striking a balance between being unduly simplistic or overly mathematical in their approach, the authors provide the critical analysis that is missing from much of the literature on soldering. An entire section is devoted to the difficult art of fluxless soldering and includes strategies for devising successful processes. The final chapter is devoted to recent advances in soldering technology and covers a variety of topics including lead-free solders, flip-chip interconnection, diffusion soldering, amalgams as solders, composite solders and other hot areas of research. Containing approximately 200 figures and 60 tables, this book updates and greatly expands the soldering content in the book Principles of Soldering and Brazing (1993) by the same authors. A companion volume, Principles of Brazing, is in development.
Materials Park, Ohio: ASM International, 2004
e20442559
eBooks  Universitas Indonesia Library
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Rizki Arief Wicaksana
Abstrak :
Skripsi ini bertujuan untuk mengembangkan proses torch brazing dengan mentransmisikan tekanan pada sampel yang akan dilakukan proses brazing. Alat didesain dengan software Inventor 2013 yang kemudian disimulasi dengan software Ansys 14. Simulasi dilakukan dengan metode static-thermal simulation. Percobaan dilakukan dengan memberikan variasi tekanan mekanik pada sampel, dan menganalisis hasil dari sampel. Tekanan mekanik yang diberikan sebesar 0, 0,7, 1,2, dan 1,7 MPa. Stress diperoleh melalui dua metode analisis, yakni perhitungan analitik dan perhitungan numerik. Tegangan termal sebesar 2,1 GPa dengan metode perhitungan analitik, dan 1,57 GPa dengan simulasi numerik. Hasil menunjukan semakin besar tekanan mekanik yang diberikan maka semakin besar pula displacement. Ketika filler meleleh, tekanan mekanik menyebabkan sampel saling dorong dan menyebabkan berkurangnya ketebalan filler. Semakin tinggi tekanan statik yang diberikan maka semakin kecil ketebalan filler. Sehingga apabila dipanaskan akan membuat stainless steel mengalami pemuaian panjang dan mengakibatkan thermal stress. Semakin tipis ketebalan filler akibat tekanan mekanik akan mengakibatkan jarak interaksi semakin kecil, dan dengan muai panjang yang sama akan mengakibatkan thermal stress semakin besar seiring bertambahnya tekanan mekanik. Sehingga displacement akan semakin besar seiring dengan semakin besarnya tekanan mekanik yang diberikan. ...... This study is to develop the process of torch brazing to transmit the pressure on the sample to be brazed. The device is designed by Autodesk Inventor 2013 then simulated with ANSYS 14. Simulations performed with a static-thermal stress method. The experiments were performed by providing mechanical pressure variations in the sample, and analyze the results of the sample. Mechanical stress is given by 0, 0.7, 1.2 and 1.7 MPa. Thermal stress obtained through the two methods of analysis, the analytical calculations and numerical calculations. Thermal stress of 2.1 GPa is obtained with analytic calculation method, and 1.57 GPa with numerical simulations. The results showed that the greater the mechanical stress is given, the greater the displacement. When the filler melts, causing mechanical pressure push each sample and cause a reduction in the thickness of the filler. The higher the static pressure given the smaller thickness of the filler. Therefore, when the sample is heated to make stainless steel undergo expansion and resulting thermal stress. The thinner the thickness of the filler due to mechanical pressure will result in the interaction distance is getting smaller, and with the same length expansion will result in greater thermal stress with increasing mechanical pressure. Therefore the displacement will increase along with the amount of mechanical stress is given.
Depok: Fakultas Teknik Universitas Indonesia, 2014
S56825
UI - Skripsi Membership  Universitas Indonesia Library
cover
Abstrak :
To fill an existing need within the vacuum industry, this hands-on reference book focuses on the basic and practical issues of vacuum technology... from startup to finished product. It's an everyday tool that provides information on maintenance requirements and cautions, actual case histories for oil-hardening and gas-quenching materials and sintering, details for special processes in vacuum, and advice for leak detection troubleshooting.
Materials Park, Ohio: ASM International, 1998
e20442496
eBooks  Universitas Indonesia Library
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Choirun Cahyoabdi
Abstrak :
Torch brazing adalah salah satu metode brazing berdasarkan sumber panas. Metode ini dalam proses penyambungan logam tergolong liquid-solid state thermochemical dan pada umumnya digunakan dalam penyambungan pipa. Proses brazing ini memanaskan logam pengisi hingga mencapai titik leleh tanpa melampaui titik leleh logam dasar yang akan disambung. Logam pengisi akan memberikan sambungan yang kuat pada logam dasar setelah mengalami pendinginan. Pemberian tekanan dan panjang lap joint pada proses brazing akan berpengaruh pada kualitas sambungan. Pada penelitian ini akan diketahui pengaruh tekanan dan panjang lap joint terhadap kekuatan sambungan pipa baja rendah karbon bundy dan tembaga C1100T. Konfigurasi yang paling optimal pada panjang lap joint akan diketahui dari hasil beban tarik. Beban tarik dan jarak antar sambungan adalah faktor yang mempengaruhi kekuatan dari sambungan brazing. Hasil penelitian menunjukkan tekanan memiliki pengaruh lebih besar daripada panjaang lap joint terhadap logam tak sejenis menggunakan torch brazing. ......Torch brazing is one method of brazing based on the heat source. This method as the process of joining metals in classified as liquid-solid state thermochemical and generally used in the joining pipe. This process heats the brazing filler metal until it reaches the melting point without exceeding the melting point of the base metals to be joined. The filler metal will give strong joining to the base metal after cooling. Giving pressure and length of lap joint in the brazing process will affect the quality of the joining. This research will investigate the effect of pressure and length of lap joint to joint strength of low carbon steel bundy tube and C1100T copper. The most optimal configuration between length of lap joint will be known from the result of shear load, which are the factors that affect joint strength of brazing. The result shows that the pressure have effect bigger than length of lap joint for dissimilar metal using torch brazing.
Depok: Fakultas Teknik Universitas Indonesia, 2015
S59436
UI - Skripsi Membership  Universitas Indonesia Library
cover
Dony Prasetyo Adji
Abstrak :
Penerapan penggunaan komponen bimetal pada industri high vacuum, cryogenic, medis, serta nuklir memerlukan adanya proses penyambungan kedua material dengan logam berbeda, salah satunya dengan metode brazing. Brazing adalah proses penyambungan logam dengan menempatkan logam pengisi pada permukaan sambungan kemudian dilelehkan, tanpa melelehkan logam dasar. Pada penelitian ini, bahan AA1100 dan tembaga murni disambung dengan metode brazing dengan variasi celah sambungan 0 mm, 0.075 mm, danĀ 0.15 mm. Pengujian yang dilakukan meliputi uji mikrostruktur, uji tarik, serta uji keras. Hasil penelitian menujukkan hasil sambungan yang didapat berkekuatan rendah, akibat dari tidak terjadi pembasahan dan aksi kapilar yang merupakan syarat utama proses brazing. Nilai kuat tarik sambungan jauh di bawah nilai kuat tarik aluminium AA1100, 20 MPa dibandingkan dengan 110 MPa. Terjadi proses rekristalisasi dan pertumbuhan butir pada area HAZ baik di sisi aluminium AA1100 maupun di sisi tembaga murni. ...... The use of bimetallic component in high vacuum industry, cryogenic, and medical area requires a process of joining two different metals, with brazing as one of the selected method. Brazing is a joining process in which the use of logam pengisi metal is melted and flowed into the joint. In this study, AA1100 and Cu is joined using torch brazing method with the variant of joint clearance of 0 mm, 0.075 mm, and 0.15 mm. tests that was carried out including microstructure test, tensile test, and hardness test. Results show that the joints were not strong, due to no wetting and capillary action which are the main requirements for the brazing process. Ultimate tensile strength of the joint is way lower than the ultimate tensile strength of AA1100, with the value compared are 20 MPa to 110 MPa. Recrystallization and grain growth were occurred whether in AA1100 side or pure copper side.
Depok: Fakultas Teknik Universitas Indonesia, 2022
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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