Tag Archives: Numerical control machine tool

The advantage of numerical control machine tool

More and more factories are using numerical control machine tool, even if the numerical control machine tool more expensive than traditional machine tool. Because in the present age, product rapid changes, market competition is intense, the lack of skilled workers, as well as the rising cost of paying, makes the numerical control machine tool instead of traditional machine tool position, because the numerical control machine tool can improve the production efficiency, guarantee the quality of the product. Of course, it also has other unique advantages.

1, reduce the time to prepare

Work in staff received figure before started to carry on the processing, the traditional machine tool many preparation work needs to be manually operation, such as the tool marking and positioning. In the numerical control machine tool, these things operate convenient and quickly, and accurately.

2, reduce operation steps and time

Due to the numerical control machine tool is automatic operation, required adjustment time also in decline, many steps are changed from the original manual to numerical control, reduce working intensity of the operators, and can take care of some operation of machine at the same time.

3, improve the design and machining flexibility

In traditional machine tool to process some complex curve or three dimensional work is very difficult, and therefore limits the freedom of design, but the numerical control machine tool can multi-axis turning at the same time, the most suitable for machining complex curve, and the machining accuracy can be controlled to improve, reduce the design constraints.

4, reduce human error

Numerical control machine tool is the automatic processing, can reduce the operator due to fatigue or emotion etc. human factors caused error, will greatly improve the quality of product, as long as the program is correct, cutting tool and machine can accurate processing.

5, extend cutter life

Numerical control machine tool for the spindle speed and feed rate are controlled by program, so the cutter can be used under the best speed and feed rate, and can keep the stable consistent cutting so that cutter less susceptible to wear, thus extend the life of the cutter.

The chip harmfulness

In metal cutting processing Produce scrap iron, chipping, serration iron sheet and because of the heat generated by the cutting clinkering scrap iron or united into amorphous metal object general terms is chip.

And all the cutting work, there are chips. The chip type, according to the work piece material and cutting are different. Brittle materials such as cast iron, brass chips are chopped into fragmentary; iron, steel and pure copper tempered ductile material chips into a continuous spiral strip.

Broken material chip is easy to invade the machine tool and fixture anyplace. When it stays in the fixture at the footing, fixture position is not straight. When it stays on the locations, work piece fixture position is not allowed. Above two kinds of circumstances, as long as there is a presence, will make the size of the finished product allowed, shape deformation. Once chip into screw hole, or rotation pin hole, will interfere with the rotation of the part, as a result, the tool wear faster, will shorten service life.

Continuous chip, its fragment harmfulness and the broken chip is the same. In addition, because the chip as a sharp blade, and contains heat, no matter what fixture or work piece, contact with it will be damaged, even fly out wounding. So chip should be clear in time, lest cause unnecessary damage.

Modern numerical control machine tool using the NC editor function, periodic changes in feeding, to achieve the purpose of forced chip breaker, often referred to as “program-controlled chip breaker”. This approach chip breaker reliability is high, but the cost is higher, due to the low cutting economics, so that only applies to other difficult to chip breaking process, for example, radial facing circuit quirk.