Fixing Your Own Machine Components

Many industrial concerns have workshops that belongs to them. For that

repair of worn shafts, the lathe machine is great. Keyway

slots could be machined using a milling machine, while a

shaping machine can perform machining of huge flat areas. A

drilling machine does drilling of holes.

An experienced Maintenance Engineer ought to know how to make use of each one of these

machines to make their own repairs inside a safe manner. Very

frequently he needs to supervise machinists. The data below

ought to be helpful for your purpose.

Lathe Machine

The lathe machine utilizes a single-point-cutting tool for any variety

of turning, facing, and drilling jobs. Excess metal is taken away

by rotating the job piece within the fixed cutting tool to create

straight or tapered round shapes, grooves, shoulders and

screw threads. It is also employed for facing flat surfaces on

the ends of round parts.

The job piece is clamped onto a horizontal rotating shaft with a

3-jaw or 4-jaw chuck. The second chuck may be used to cut

off-centered cylinders. The rotating horizontal spindle that

the chuck is attached is generally driven at speeds that may be


The cutting tool is bound onto something rest and manipulated by

hands. It is also power driven on straight pathways parallel or

verticle with respect towards the work axis. This really is helpful for screw cutting.

Internal turning referred to as boring leads to the enlargement of

a previously existing hole. The holes tend to be more accurate in

roundness, concentricity, and parallelism than drilled holes. A

hole is tired of just one-point-cutting tool that feeds along

within the job piece.

Shaping Machine

The shaping machine can be used to machine flat surfaces, grooves,

shoulders, T-slots, and angular surfaces with single-point tools.

The cutting tool around the shaper oscillates, cutting around the forward

stroke, using the work piece feeding instantly toward the tool

during each return stroke.

Drilling Machine

The drilling machine can be used to chop holes in metal having a twist

drill. By altering the cutting tool, they may be used to do

reaming, boring, counter boring, countersinking, and threading.

Milling Machine

The milling machine utilizes a rotating cutting tool to chop flat

surfaces, grooves, and shoulders, inclined surfaces, dovetails,

and T-slots. Cutters of numerous shapes are altered to chop different


Cutting Tools

Metal-cutting tools are called anchorman or multiple

point. The lathe and shaping machine use anchorman cutting tool

as the milling and drilling machines use multiple-point-cutting


Metal is cut either by moving the job piece as with the lathe or

by moving the tool as with the shaping machine, drilling or

milling machine. Clearance angles should be presented to avoid the

tool surface underneath the leading edge from rubbing from the work

piece. Rake angles are frequently provided on cutting tools to result in a

wedging action within the formation of chips and also to reduce friction and


Tool Materials

To be able to remove chips from the work piece, a cutting tool should be

harder compared to work piece and should maintain a in the

temperature created through the friction from the cutting action.

Carbon Steel

Carbon steel tools despite the fact that comparatively affordable have a tendency to

lose cutting ability at temperatures around 400 degree F (205

degree C).

High-Speed Steel

High-speed steel, that contains 18 percent tungsten, 4 % chromium,

1 % vanadium, and just .5 to .8 percent carbon, permits the

operation of tools two times or three occasions the speeds allowable with

carbon steel

Cast Alloys

Cast-alloy cutting-tool materials that contains cobalt, chromium, and

tungsten work well in cutting surefire and retaining their

cutting ability even if in demand.

Cemented Tungsten Carbide

Report of Tungsten Carbide approaches what gemstone.

Tungsten carbide tools could be operated at cutting speeds many occasions

greater than individuals combined with high-speed steel.


Ceramic, or oxide, tool tips consist mainly of proper aluminum oxide

grains, that are glued together. They are very difficult.

Cutting fluids

An overheated tool may become blunt and soft extremely fast. Therefore

very frequently, cooling fluids cools the cutting points from the tool. This

serves to lubricate and awesome.

Water is a superb cooling medium, however it corrodes ferrous

materials. Sulfurized mineral oil is among the most widely used coolants

as it can certainly both awesome in addition to lubricate. The sulfur prevents chips

in the work from melting to the tip from the tool.

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