dcv 1044 amalan bengkel - cikguamirul.files.wordpress.com · 3.2 menjelaskan proses membentuk 3.3...
TRANSCRIPT
DCV 1044 – AMALAN BENGKEL
TOPIK 3: FABRIKASI LOGAM
Disampaikan oleh:Muhammad Amirul bin Abdullah
Unit Automotif, KKBD
cikguamirul.wordpress.com
TOPIK 3.0 FABRIKASI LOGAM
3.1 MENJELASKAN PROSES PEMOTONGAN
3.2 MENJELASKAN PROSES MEMBENTUK
3.3 MENJELASKAN PROSES MENYAMBUNG
• Milling
• Turning
• Threading
• Grinding
• Filling (mengikir)
• Drilling
3.1 MENJELASKAN PROSES PEMOTONGAN
Milling machine (Vertical, Manual)
1.Face milling cutter
2.Spindle
3.Spindle head
4.Column
5.Table
6.Saddle
7.Knee
8.Base
9.Spindle switch
10.Spindle speed gear lever
11.Spindle speed control lever
12.Oil tank
13.Table manual wheel
14.Table lock bar
15.Saddle automatic moving bar
16.Saddle automatic moving control dial
17.Saddle manual wheel
18.Knee manual wheel
19.Quick button
Horizontal milling machine. 1: base 2: column 3: knee 4 & 5: table (x-axis slide is integral) 6: overarm 7: arbor (attached to spindle)
KIKIR digunakan untuk memotong, menipiskan, atau melicinkan permukaan sesuatu komponen atau benda kerja.
Proses memotong, menipiskan, dan melicinkan ini dinamakan mengikir.
Shearing
HydraulicTypes Of sheet
metal Shearing Machine
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Bolts, screws and nuts
Types of bolts
Through Bolt Tap Bolt Stud Bolt
Types of Nuts
Palnut Self-Locking Interference
Collar
Self-Locking
Hex Slotted Hex Castle
(or Castellated)
Acorn Square
Hexagonal
Head
Internal
Hex (Allen)Fluted Phillips Round
Head
Flat
Head
Fillister
Head Oval
Head
Various Types of Screw heads
Bolt and nut size indication
B
B
B
Hexagonal bolt Hexagonal nut
M 10 x 1.25
Pitch
Nominal diameter (d)
Metric Thread
Thread nominal diameter D Diameter P Pitch B Width across flats
M5 5mm 0.8mm 8mm
M6 6mm 1mm 10mm
M8 8mm 1.25mm 12mm
M10 10mm 1.25mm or 1.5mm 14mm
Examples of General Bolts and Nuts
60°
Pitch p
A D
Bolt (External Thread) Nut (Internal Thread)