Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
ABSTRAK
Pembuatan mikro kapsul untuk terapi kanker laju dosis rendah memerlukan kualitas yang baik agar tidak berdampak negatif terhadap pemakai. Pengelasan mikro kapsul menggunakan las laser Nd-YAG yang merupakan bagian dari proses pembuatan harus pula dilakukan secara baik. Penelitian ini menganalisis proses pengelasan mikro kapsul dari bahan Ti6Al4V untuk terapi kanker dosis rendah yang dilakukan Pusat Radioisotop dan Radiofarmaka Badan Tenaga Nuklir Nasional (PRR BATAN),untuk mendapatkan pengaturan parameter pengelasan yang optimal. Pengaturan parameter meliputi pengaturan frekuensi, kecepatan las, bentuk pulsa laser, aliran gas selubung dan perhitungan teoritis pelelehan yang terjadi. Berdasarkan analisis hasil penelitian, dengan mengubah bentuk pulsa laser dapat dilakukan pengelasan dengan energi yang lebih rendah 14,54% penurunan daya penuh 40% dan rata-rata daya turun 50,1%, serta penghematan gas argon sebesar 16,67% dan mendapat tembusan pengelasan yang lebih baik.

---

Abstract
Manufacturing process of low dose rate micro-capsules for cancer therapy requires a good quality to avoid the negative impact for the user. Nd-YAG laser welding of the micro capsule, which is part of the manufacturing process, must also be done well. This study analyzes the process of laser welding the micro capsules of Ti6Al4V material for low-dose rate cancer therapy performed radioisotope and radiopharmaceutical Center National Nuclear Energy Agency (PRR BATAN) to obtain the optimal welding parameter settings. Parameter settings include setting the frequency, speed of welding, laser pulse shape, gas flow shield and the theoretical calculations of melting. Based on the analysis of research results, by changing the shape of the laser pulse, welding can be done with a lower energy 14.54% reduction in the full power 40% and an average power decrease 50,1%, and argon gas savings of 16.67% and get better welding penetration.

Abstrak :
Contents : - Recent Developments in Weldability Testing for Advanced Materials - Reactive Air Brazing for High-Temperature Electrochemical Applications - The Effect of High-Temperature Dual Reducing/Oxidizing Gas Conditions on Silver-Based Filler Metal Compositions - Development of Hyper-Interfacial Bonding Process of Ultra-Fine Grained High Strength Steels - Important Lessons Learnt in the Design of Consumables for Welding High Strength Steels - The Development of a Compressive Residual Stress Around a Structural Steel Weld by Means of Phase Transformations - Micro Electron Beam Welding in an SEM - Nd-YAG Laser Micro Welding of Ti-Ni Type Shape Memory Alloy Wire and it’s Corrosion Resistance - The Effect of Surface Tension on Microjoining - Interfacial Reaction Between Sn-8Zn-3Bi and Ni/Au Plating - Room Temperature Lead-Free Soldering of Microelectronic Components using a Local Heat Source - Study for Increasing in the Melting Temperature of Micro Joint using Sn-Ag Solder and Au/Ni-Co Plating - Microstructural Characterization of Eutectic Sn-Au Solder as a Lead-free Solution - Effects of Melt-Pool Geometry and Substrate Orientation on Microstructure Development in Laser Surface Melting of Single Crystal Superalloys - Weldability of Ni-Base Single Crystal Superalloys - Microstructure of Laser Deposited Superalloy RENE 80 on GTD-111 - Designing Sealing Glasses for Solid Oxide Fuel Cells - Glass-Ceramics for Sealing Solid Oxide Fuel Cells - Compressive Mica Seals for Solid Oxide Fuel Cells - High Temperature Seals for Solid Oxide Fuel Cells (SOFC) - A New Sealing Concept for Planar Solid Oxide Fuel Cells - Effects of Surface Microstructure of Copper on Surface Energy after Pulse Nd: YAG Laser Irradiation - Damage Control of Soldering Iron Tip for Lead-Free Solder - Resistance Microwelding of Fine Nickel Wires - Novel Bonding Process Using Ag Nanoparticles - Influence of Bonding Conditions - - YAG Laser and TIG Arc Hybrid Welding Phenomena - Effect of Joint Design on Mechanical Properties of AL7075 Weldment - Properties of Weld Joints of Bake-Hardening Steel for Automobile - Lead-Free Soldering of a Hybrid Microcircuit Package Assembly: A University- Industry Design Project Collaboration - Effect of Ni Addition on Interfacial Reaction between Sn-Cu Solder and Cu Base Metal - Effect of Au Coating Thickness on Interfacial Reaction and Joint Strength of Sn- Ag Based Solders Reflowed on Electroless Ni-P/Au Plated Cu land