Hasil Pencarian  ::  Simpan CSV :: Kembali

"Torch brazing merupakan salah satu metode brazing yang pada umumnya sering digunakan. Metode ini biasanya dilakukan dalam penyambungan pipa. Proses brazing ini sendiri melibatkan logam dasar/base metal (logam yang akan disambung) dan logam pengisi/filler metal. Logam pengisi akan dipanaskan hingga mencapai titik leleh, dimana titik leleh logam pengisi lebih kecil daripada titik leleh logam dasar. Setelah mengalami pendinginan dan pengerasan maka logam pengisi akan memberikan sambungan yang kuat pada logam dasar. Pemberian tekanan pada proses brazing akan menimbulkan efek pada kualitas sambungan. Pada penelitian ini akan dilihat pengaruh tekanan tersebut terhadap kekuatan sambungan. Pemberian tekanan pada sambungan tentunya akan mempengaruhi joint clearance, dimana joint clearance tersebut adalah salah satu faktor yang mempengaruhi kekuatan dari sambungan brazing.

---

Torch Brazing is one method that is frequently used in general. This method is usually done the connecting pipe. The brazing process itself involves the base metal/base metal (metal that will be connected) and filler metal/filler metal. Filler metal will be heated to the melting point, where the melting point of the filler metal more smaller than the melting point of the base metal. After experiencing cooling and hardening of the filler metal will give strong connection to the base metal. Giving pressure on brazing processes will cause an effect on the quality connection. This research will be seen that the effect of pressure on the strength of the connection. Giving pressure the connection will certainly affect the clearance joint, where the joint clearance is one of the factors that affect the strength of the brazed."

"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.

"

"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, dan 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."

"Torch brazing is one method of brazing based on using a heat source for joining metals. This method is classified as a liquid-solid state thermochemical process and is generally used in joining pipes. 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. After cooling, the filler metal grants a strong joining capacity to the base metal. Depending on the amount of pressure and the length of lap joint in the brazing process the quality of the joint will be affected. This research will investigate the effect of pressure and the length of the lap joint on the material strength properties of BJ DD2 steel and C12000 copper. An optimal configuration between pressure and the length of lap joint will be determined from the result of shear load and joint clearance, which are the factors that affect joint strength and the process of brazing. The greater the shear load and the smaller the joint clearance, the higher the joint strength will be. The result shows that the pressure has a larger effect than the length of the lap joint for dissimilar metal joining using torch brazing."