A Quick Review Of Precision Machining

By Rena Hudson


The current breed of Precision Machining equipment is the major driving force behind the fascinating creations of the fabrication industry. One of the fundamental pieces of equipment in these workshops is the lathe machine. Besides filling up worn sections on shafts, it can also be used for cutting threads and drilling tapered holes in raw metal bars. It can handle an endless list of fabrication processes if it is used in conjunction with other tools.

A hole could be drilled on a mounted work piece if a drill bit fastened on the turning head jaws is slowly advanced forwards on a stationary material. Engineering calipers or a micrometer screw gauge are some of the most accurate measuring implements that will guarantee precise dimensioning. This machine was initially developed for shaping cylindrical metal stock for industrial use.

They are classifiable in three broad categories based on their basic operation. Large machines will usually be floor mounted with special mechanisms for absorbing vibrations. Engine driven lathes are very flexible since the technician can spend the better part of his day working remotely as long as a means of transport is provided.

To make the lathes adaptable to different projects, many manufacturers provide additional extensions. The bed covers the largest area and provides space for the operator and supports ways that aid in positioning the tail stock. On the left hand side will be located the headstock, along with a pulley, belt or gear mechanism from the motor or engine. Somewhere on the side of the gear housing is a selection lever for setting the number of revolutions per minute.

Lubrication and regular calibration is necessary to keep these kinds of equipment in good working conditions. While transporting may be rare and costly, it is advisable to cover it with a large cloth to keep out dirt and moisture. If your workshop is quite dusty, the lubricant will have to be changed more regularly to prolong the lifespan of high friction areas.

The machining room is a high risk area, and all members of staff accessing it should observe the laid out safety rules. Ornaments such as necklaces and wrist watches will have to be discarded as they are a risk element. All adjustments can only be commenced once the motor has come to a complete stand still.

Heavy overalls and steel toe boots should be worn when operating machining implements. Goggles will protect your eyes from fragments that are always flying from the work piece during cutting. Chips and filings collected on the bed and the floor should be gathered with gloved hands and dust pans and stored for sale to scrap metal collectors. Avoid cluttering the bed with tools such as wrenches and spanners as they predispose you to injury.

Cutting tools should be properly positioned on the tool holder to make contact at the right angle during Precision Machining. The machines used today have evolved from the conventional role of fashioning cylinders into more complex roles. One of their greatest capabilities is cutting out threads of a specified pitch for worm and wheel drive units. They could also be used to slowly rotate a worn out shaft as it is filled with an arc weld before smoothening its surface.




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