mechanical engg

iam purushottam chauhan ..i love mechanical engg so much...mechanical means mechanical work with mechanical instrument..iam mewar university student ..in our university mr. dhavaj kirti sharma sir is the head of both mech and civil department...he is paractical and thioretical in both branches...we all student get inspire by his work..he is multitalented person ...he told us that decipline is the first chapter to understand these core branches... so we all obhey is rule.....

FITTING SHOP TOOLS & EQUIPMENTS

FITTING SHOP TOOLS & EQUIPMENTS
S.
NO. NAME PF ARTICLE WITH SPECIFICATION QTY.
COST
OF
EACH
AMOUNT
Rs.
1 Flat smooth File 6” 8 50.00 400.00
2 Micrometer 0.25 mm L.C. 0.01mm 1 250.00 250.00
3 Half Round second cut File 12” 6 100.00 600.00
4 Square smooth File x10” 2 100.00 200.00
5 Triangular smooth File 6” 10 50.00 500.00
6 Ball Peen Hammer 200 gm with wooden handle 5 50.00 250.00
7 Cross Peen Hammer 200 gm with wooden
handle
5 50.00 250.00
8 Adjustable Hack saw frame 12”-14” 20 100.00 2000.00
9 Tap & Die Box 0-10 B.A 1 700.00 700.00
10 Try square 6” Stainless steel blade (Gadore)
0.24 Kg.
10 25.00 250.00
11 Try square 10” stainless steel blade (gadore)
0.45 Kg
10 30.00 300.00
12 Surface gauge stainless steel blade 6 50.00 300.00
13 Surface Plate 18”x18” with stand 1 1500.00 1500.00
14 V Block 3”x 2 ¼” x 1 ¼" Precision Ground 2 700.00 1400.00
15 Spring caliper 6” inside 10 50.00 500.00
16 Spring caliper outside 6” 10 50.00 500.00
17 Odd leg caliper 6” 5 50.00 250.00
18 Vernier caliper 12” L.C. 0.01 mm wt. 0.5Kg
approx.
2 800.00 1600.00
19 Adjustable wrench 12” Chrome Platted 2 125.00 250.00
20 Die grinding Kit high speed grinder 16000 rpm
appro. Single phase motor with 20 No. grinder
wheel
1 2500.00 2500.00
21 Drilling M/C Bench type 1” with stand & Motor 1
H.P. single phase
1 4000.00 4000.00
22 Pipe Vice 50 mm wt. 8 Kg approx. 2 1000.00 2000.00
23 File square second cut 6” 5 50.00 250.00
24 Fitter Bench Vice (6 x 150 ) No. x mm heavy
duty double rib wt. 25 Kg approx.
20 3000.00 60000.00
25 Tap set 6.5,10,13,20, 25 mm size with
adjustable wrinch
1 800.00 800.00
26 Twist Drill straight shank 1 mm to 12 mm step
rising 0.5 mm
2 300.00 600.00
Fitting Shop Page 2
S.
NO. NAME PF ARTICLE WITH SPECIFICATION QTY.
COST
OF
EACH
AMOUNT
Rs.
27 Half Round smooth File 4” 15 40.00 600.00
28 Round smooth File 12” 10 100.00 1000.00
29 Drill Sleeve 0-1 MT, 1-2 MT 1 50.00 50.00
30 Adjustable PIPE DIE Set B.S.W. thread 1½” , 1
¾”, 2” with die stock (Inder Apex, Jhalani)
3 1500.00 4500.00
31 Machine Vice 4" wt. Approx. 10 Kg 1 2000.00 2000.00
32 Centre Punch 4" 4 50.00 200.00
33 Twist Taper shank drill ¾” 1 50.00 50.00
34 Straight shank Twist drill 3/8” 4 60.00 240.00
35 Scriber 6” 12 25.00 300.00
36 Flat scraper 6” 6 30.00 180.00
37 H.S.S Spiral Flut Reamer1/4” to 1” with handle
(04 pcs)
1 200.00 200.00
38 H.S.S Adjustable Reamer ¼” to 21/32” (9 pcs
set)
1 1000.00 1000.00
39 Flat Bastard File 12” single cut 20 100.00 2000.00
40 Half Round Bastard File 12” 20 80.00 1600.00
41 Pipe Wrench 12” 1 100.00 100.00
42 File Brush 5 25.00 125.00
43 Flat second cut File 10” 50 100.00 5000.00
44 Flat smooth File 10” 10 100.00 1000.00
45 Steel Tape 3 Meter 2 100.00 200.00
46 Pipe Vice 4” App. Wt. 12 Kg. 2 1700.00 3400.00
47 Screw Driver 8 mm dia 250 mm length (Pie,
Jhalani, Taparia)
2 80.00 160.00
48 Screw Driver 10 mm dia, 300mm length (Pie,
Jhalani, Taparia)
10 100.00 1000.00
49 Vernier caliper 6” 10 100.00 1000.00
50 Knife Edge File 6”Smooth 10 50.00 500.00
51 12”Flat second cut File 8 100.00 800.00
52 Plier Combination 6” insulated (Pie, Jhalani,
Taparia)
2 50.00 100.00
53 Double ended Electrical Grinder 250 mm Size
1 HP Three Phase 50 cycles,2800 RPM
1 2000.00 2000.00
54 Stanless steel Rule 12” Wt. 0.06 Kg. 4 20.00 80.00
55 Flat smooth File 8” 10 60.00 600.00
56 Ball Peen Hammer 500 gm with handle 10 80.00 800.00
Fitting Shop Page 3
S.
NO. NAME PF ARTICLE WITH SPECIFICATION QTY.
COST
OF
EACH
AMOUNT
Rs.
57 Hack saw Frame Fixed 12” with wooden handle 10 60.00 600.00
58 Combination set 300 mm 2 1200.00 2400.00
59 Drill Chuck 0 to ½” 2 500.00 1000.00
60 Double Ended spanner 3/8” to 1” set drop
forged (Inder, Pie, Tapria, Jhalani)
5 100.00 500.00
61 Chain Pipe wrench 2”, 3”, 4” set 1 1600.00 1600.00
62 Sprit Level 2 50.00 100.00
63 Double Face Hammer 1 kg with handle 2 150.00 300.00
64 Cross peen hammer 500 gm 2 80.00 160.00
65 Number Punch 5 mm size 0-9 (10 pcs) 2 200.00 400.00
66 Pipe Wrench 350mm Heavy duty 1.5 Kg
Approx.
2 200.00 400.00
67 Pipe Wrench 450 mm Heavy duty 2.4 Kg
Approx.
2 250 500.00
68 Double Ended spanner set 6 - 32 mm (12 pcs)
drop forged (Jhalani, Everest, Taparia, Pie)
1 250.00 500.00
69 Box (Ring) Spanner Set 6 to 32 mm (12 pcs)
drop forged (Jhalani, Everest, Taparia, Pie)
2 300.00 600.00
70 Depth gauge 12” both side printed, stainless
steel blade
2 100.00 200.00
71 Digital outside micrometer 0-25, 25-50 mm
(1 each)Make- Mitutoyo, Mitsubishi, Moore
2 800.00 1600.00
72 Digital Vernier capliper 150 mm
Make- Mitutoyo, Mitsubishi, Moore
1 1000.00 1000.00
73 Micro Meter 0-25mm wt. 0.2 Kg App
Make- Mitutoyo, Mitsubishi, Moore
1 200.00 200.00
74 Micro Meter 0-25mm 25- 50 mm wt. 0.35 Kg
App. , Make- Mitutoyo, Mitsubishi, Moore
1 400.00 400.00
75 Bevel Square 12” 0.3 Kg Approx. 2 50.00 100.00
TOTAL

Parts of Lathe

A lathe may or may not have a stand (or legs), which sits on the floor and elevates the lathe bed to a working height. Some lathes are small and sit on a workbench or table, and do not have a stand.

Almost all lathes have a bed, which is (almost always) a horizontal beam (although some CNC lathes have a vertical beam for a bed to ensure that swarf, or chips, falls free of the bed). A notable exception is the Hegner VB36 Master Bowlturner, a woodturning lathe designed for turning large bowls, which in its basic configuration is little more than a very large floor-standing headstock.

At one end of the bed (almost always the left, as the operator faces the lathe) is a headstock. The headstock contains high-precision spinning bearings. Rotating within the bearings is a horizontal axle, with an axis parallel to the bed, called the spindle. Spindles are often hollow, and have exterior threads and/or an interior Morse taper on the "inboard" (i.e., facing to the right / towards the bed) by which workholding accessories may be mounted to the spindle. Spindles may also have exterior threads and/or an interior taper at their "outboard" (i.e., facing away from the bed) end, and/or may have a handwheel or other accessory mechanism on their outboard end. Spindles are powered, and impart motion to the workpiece.

The spindle is driven, either by foot power from a treadle and flywheel or by a belt or gear drive to a power source. In most modern lathes this power source is an integral electric motor, often either in the headstock, to the left of the headstock, or beneath the headstock, concealed in the stand.

In addition to the spindle and its bearings, the headstock often contains parts to convert the motor speed into various spindle speeds. Various types of speed-changing mechanism achieve this, from a cone pulley or step pulley, to a cone pulley with back gear (which is essentially a low range, similar in net effect to the two-speed rear of a truck), to an entire gear train similar to that of a manual-shift auto transmission. Some motors have electronic rheostat-type speed controls, which obviates cone pulleys or gears.

The counterpoint to the headstock is the tailstock, sometimes referred to as the loose head, as it can be positioned at any convenient point on the bed, by undoing a locking nut, sliding it to the required area, and then relocking it. The tailstock contains a barrel which does not rotate, but can slide in and out parallel to the axis of the bed, and directly in line with the headstock spindle. The barrel is hollow, and usually contains a taper to facilitate the gripping of various type of tooling. Its most common uses are to hold a hardened steel centre, which is used to support long thin shafts while turning, or to hold drill bits for drilling axial holes in the work piece. Many other uses are possible.[3]

Metalworking lathes have a carriage (comprising a saddle and apron) topped with a cross-slide, which is a flat piece that sits crosswise on the bed, and can be cranked at right angles to the bed. Sitting atop the cross slide is usually another slide called a compound rest, which provides 2 additional axes of motion, rotary and linear. Atop that sits a toolpost, which holds a cutting tool which removes material from the workpiece. There may or may not be a leadscrew, which moves the cross-slide along the bed.

Woodturning and metal spinning lathes do not have cross-slides, but rather have banjos, which are flat pieces that sit crosswise on the bed. The position of a banjo can be adjusted by hand; no gearing is involved. Ascending vertically from the banjo is a toolpost, at the top of which is a horizontal toolrest. In woodturning, hand tools are braced against the tool rest and levered into the workpiece. In metal spinning, the further pin ascends vertically from the tool rest, and serves as a fulcrum against which tools may be levered into the workpiece.

Lathe

A lathe (pronounced /ˈleɪð/) is a machine tool which rotates the workpiece on its axis to perform various operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has symmetry about an axis of rotation.

Lathes are used in woodturning, metalworking, metal spinning, and glassworking. Lathes can be used to shape pottery, the best-known design being the potter's wheel. Most suitably equipped metalworking lathes can also be used to produce most solids of revolution, plane surfaces and screw threads or helices. Ornamental lathes can produce three-dimensional solids of incredible complexity. The material can be held in place by either one or two centers, at least one of which can be moved horizontally to accommodate varying material lengths. Other workholding methods include clamping the work about the axis of rotation using a chuck or collet, or to a faceplate, using clamps or dogs.

Examples of objects that can be produced on a lathe include candlestick holders, cue sticks, table legs, bowls, baseball bats, musical instruments (especially woodwind instruments), crankshafts and camshafts.

Welding

Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld. This is in contrast with soldering and brazing, which involve melting a lower-melting-point material between the workpieces to form a bond between them, without melting the workpieces.

Many different energy sources can be used for welding, including a gas flame, an electric arc, a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding can be done in many different environments, including open air, under water and in outer space. Regardless of location, however, welding remains dangerous, and precautions are taken to avoid burns, electric shock, eye damage, poisonous fumes, and overexposure to ultraviolet light.