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 rotating work piece over 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 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 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 to work axis. This is useful for screw cutting.

Internal turning known as boring results in 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 inside of 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 on shaper oscillates, cutting on forward stroke, with work piece feeding automatically toward tool during each return stroke.

Drilling Machine 

The drilling machine is used to cut holes in metal with a twist drill. By changing 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 

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 from prizes, winning a contest may be your opportunity to showcase your photography skills in a national magazine. It’s 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.