Repairing Your Own Machine Components

Written by Thomas Yoon


Many industrial concerns have workshops of their own. Forrepparttar repair of worn shafts,repparttar 116105 lathe machine is excellent. Keyway slots can be machined by using a milling machine, while a shaping machine can do machining of large flat areas. A drilling machine does drilling of holes.†

A skilled Maintenance Engineer should know how to use all these machines in order to make his own repairs in a safe manner. Very often he has to supervise machinists. The information below should be useful for that purpose.

Lathe Machine

The lathe machine uses a single-point-cutting tool for a variety of turning, facing, and drilling jobs. Excess metal is removed by rotatingrepparttar 116106 work piece overrepparttar 116107 fixed cutting tool to form straight or tapered cylindrical shapes, grooves, shoulders and screw threads. It can also be used for facing flat surfaces on repparttar 116108 ends of cylindrical parts.†

The work piece is clamped onto a horizontal rotating shaft by a 3-jaw or 4-jaw chuck. The latter chuck can be used to cut off-centered cylinders. The rotating horizontal spindle to which repparttar 116109 chuck is attached is usually driven at speeds that can be varied.

The cutting tool is fixed onto a tool rest and manipulated by hand. It can also be power driven on straight paths parallel or perpendicular torepparttar 116110 work axis. This is useful for screw cutting.

Internal turning known as boring results inrepparttar 116111 enlargement of an already existing hole. The holes are more accurate in roundness, concentricity, and parallelism than drilled holes. A hole is bored with a single-point-cutting tool that feeds along repparttar 116112 inside ofrepparttar 116113 work piece.†

Shaping Machine

The shaping machine is used to machine flat surfaces, grooves, shoulders, T-slots, and angular surfaces with single-point tools. The cutting tool onrepparttar 116114 shaper oscillates, cutting onrepparttar 116115 forward stroke, withrepparttar 116116 work piece feeding automatically towardrepparttar 116117 tool during each return stroke.

Drilling Machine†

The drilling machine is used to cut holes in metal with a twist drill. By changingrepparttar 116118 cutting tool, they can be used to do reaming, boring, counter boring, countersinking, and threading.†

Milling Machine

The milling machine uses a rotating cutting tool to cut flat surfaces, grooves, and shoulders, inclined surfaces, dovetails, and T-slots. Cutters of many shapes are changed to cut different grooves.†

Cutting Tools†

Metal-cutting tools are classified as single point or multiple point. The lathe and shaping machine use single point cutting tool whilerepparttar 116119 milling and drilling machines use multiple-point-cutting tools.†

Photography Contest - a fun and rewarding experience

Written by Colin Hartness


Photography Contest - a fun and rewarding experience by Colin Hartness http://www.asaphotography.com

Do you like to take photos? Are you always standing by with your camera waiting for that moment that is meant to be captured on camera? You may even be taking photography classes or maybe you have already completed a photography course and you want to share your photos with others. You may want to get into photography as a career and winning a photography contest will help you get recognized. Maybe you are just an amateur that has a favorite photo that people keep telling you to enter.

Whatever your reasons, a photography contest can be a fun and rewarding experience for you. To find out all you need to know about entering a photography contest, read on.

How to Enter a Photography Contest

There are some excellent photography contests out there, some even offer large cash prizes, scholarships to photography schools and really nice cameras and camera supplies. Aside fromrepparttar prizes, winning a contest may be your opportunity to showcase your photography skills in a national magazine. Itís easy to see why someone would want to enter a contest.

First you are going to want to choose a contest. In fact, there are so many out there you should make a list of ones you are interested in competing in. There are contests in almost every category you can think of; wildlife, underwater, boats, boat docks, people, children, self portraits, birds, tress, flowers, and much more. Some contests are not category-specific but leave you freedom to use your creativity.

Next, you will double checkrepparttar 116104 dates for entries to make sure you are not wasting your time sending to one that has already reached its deadline. You will also want to check any and all requirements torepparttar 116105 contest and make sure you qualify. You will then want to check for any fine print and be sure you agree withrepparttar 116106 terms. For example, some contests have rules about copyright and you give up copyright by submitting, others ask for print to publish Ė even if you donít win, and without notifying you. If you do not agree torepparttar 116107 terms ofrepparttar 116108 contest, you should not enter. By entering, you are agreeing torepparttar 116109 terms. There may also be entry fees required forrepparttar 116110 contests.

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