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teknik pembentukan pelat jilid 2 smk

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C11<br />

Gambar Halaman<br />

7.28 Proses Brazing di Industri............................................ 398<br />

7.29. Las Resistansi Titik...................................................... 399<br />

7.30. Las resistasi titik dengan penggerak tuas tangan ....... 400<br />

7.31. Las resitensi titik dengan penggerak tuas................... 400<br />

7.32. Penyetelan batang penyangga elektroda ................... 401<br />

7.33. Las Resistansi............................................................. 401<br />

7.34 Proses Las Resistansi ................................................ 402<br />

7.35. Skema Pengelasan..................................................... 403<br />

7.36. Polaritas arus pengelasan .......................................... 405<br />

7.37. Trafo Las dan Kelengkapannya .................................. 406<br />

7.38. Meja Las .................................................................... 406<br />

7.39. Ruang las ................................................................... 407<br />

7.40. Perlengkapan Keselamatan Kerja Las Busur Nyala... 408<br />

7.41. Berbagai macam posisi pengelasan .......................... 409<br />

7.42. Sambungan sudut....................................................... 410<br />

7.43. Kampuh V .................................................................. 410<br />

7.44. Latihan mengelas Posisi 2 F....................................... 411<br />

7.45. Beberapa model pengelasan ..................................... 412<br />

7.46. Teknik Ayunan dalam pengelasan di bawah tangan .. 413<br />

7.47. Teknik Mengelas Kampuh Sudut ............................... 413<br />

7.48. Teknik mengelas Pada Posisi Vertikal Up .................. 414<br />

7.49. Pengelasan posisi Over head..................................... 415<br />

7.50. Jalur las dilihat secara visusal ................................... 416<br />

7.51. Kriteria hasil pengelasan ........................................... 417<br />

7.52. Proses pengelasan pipa di lapangan.......................... 418<br />

7.53. Sambungan Las yang Mengalami Keretakan ............ 418<br />

7.54. Kawat Las/Elektroda................................................... 421<br />

7.55. Proses Las Oksi-asitelin ............................................. 428<br />

7.56. Generator asetilen ...................................................... 429<br />

7.57. Brander Las Asetilen .................................................. 430<br />

7.58. Nyala api Oksi-asetilen ............................................. 432<br />

7.59. Regulator Oksigen ...................................................... 437<br />

7.60. Regulator Asetilen ...................................................... 437<br />

7.61. Selang Gas ................................................................. 440<br />

7.62. Las Asetelin ................................................................ 442<br />

7.63. Las TIG ....................................................................... 443<br />

7.64. Skema pengelasan las TIG ........................................ 444<br />

7.65. Diagram rangkaian listrik dari mesin las listrik DC...... 445<br />

7.66. Pengaruh polaritas pada pengelasan TIG .................. 446<br />

7.67. Skema las TIG ........................................................... 447<br />

7.68. Contoh Pengerjaan Las TIG ....................................... 448<br />

7.69. Rangkaian Las TIG..................................................... 448<br />

7.70. Mulut pembakar (Welding Torcn) dengan<br />

pendinginan air .......................................................... 450<br />

7.71. Jenis pelindung nozel ................................................ 451<br />

7.72. Nozel las TIG ............................................................. 451

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