Related topics:
This information and services are provided by:
Do you want to hide this popup?
An annular test gauge made of high-quality hardened steel is called adjusting ring. The steel is ground very fine and lapped for this usage. The adjusting ring serves as a reference dimension for multiple bore gauges, like the three point inside micrometer or the inside measuring surface of calipers.
Mostly setting ring gauges are knurled on the outside so that they are well in hand when measuring or adjusting the bore gauges.
Related topics:
This information and services are provided by:
Length or differences in length are measurend with a dial gauge. It can be used for comparative, flatness, positional or concentricity measurements.
Dial gauges exist with analogue or digital display. Setup and function are standardized by DIN regulation 878.
Dial gauges with round scale and analogue display transmit the longitudinal movement of the measuring probe with a toothed rack and gear to the pointer. As a result, the pointer of the dial gauge rotates several times in a circle. The number of revolutions is indicated by a second pointer, similar to the hour hand of a watch.
The advantage of the gear rack transmission is the relatively large measuring range. The disadvantage is, that if the measuring distance greatly exceeds the travel range of the rack, it might lead to gear damage or rack damagein case of a rigid locking of the dial gauge.
Alternativly there are dial gauges with slave pointer with a delayed point of return. However this kind of dial gauges cannot carry out measurements with value differences, like concentricity or flatness.
In addition a great advantage of a dial gauge is, that it can be used in pressure and tension mode and that the return of the measuring rod is done with a spring. Therefore the applied measuring force is almost constant.
Most dial gauges achieve an accuracy level of approximately 10 µm and have a measuring range of 5 to 60 mm. A few dial gauges have an accuracy of 1 µm.
Related topics:
This information and services are provided by:
The allowed upper and lower gages of a test specimen can be compared with a limit gauge.
It is checked, if the actual dimension of a test specimen is within a tolerance of a requested nominal dimension.
In contrast to the measurements with a caliper or a micrometer, there is no numerical value given.
There is only the statement, if the dimension of the test specimen is good or not.
A big advantage of the limit gauge is the cheap price, compared to e.g. a three-point inside micrometer.
So the limit gauge is very good to figure out if a part is good or needs to be rejected, or if post-treatment is necessary.
Related topics:
This information and services are provided by:
A group of experts in the plastic industry founded the company PLEXPERT, 2006 in Germany, in order to save resources, providing a positive impact on budget and environment.
There are two divisions within the company. One is focusing on finite element simulations (FEM) like injection molding simulation and structural analysis.
Based on decades of practical experience DFM conform results are given by the consultant service of PLEXPERT to decrease part costs and increase quality in the production of plastic parts.
The second division is focused on the development and supply of soft- and hardware to the plastic industry. With the state of the art products PLEXPERT contributes to secure production and reduce the need of precious resources.
Today PLEXPERT has offices in Canada, Germany, Thailand and China in order to support its customers fast and effectively.
Due to a close network of plastic experts, partners are available in many other countries as well and offer PLEXPERT products and services.
PLEXPERT Company Logo.
Related topics:
