Shenzhen Perfect Precision Product Co., Ltd. |
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Precision CNC brass parts, machined and polished
Quick Details:
1. Keywords: CNC brass parts
2. Process: CNC processing
3. Color: gold
4. Origin: Shenzhen, China
5. Use: widely used
6. Drawing format: 2D/(PDF/CAD) 3D (IGES/STEP)
7. Equipment: CNC machining center
8. Delivery time: 1-2 weeks
How to Measure the Error of Roundness in Precision Parts Processing
The roundness error can be checked by using the roundness meter
method and the two-point method and three-point method in the
processing of precision parts. The rule of the roundness tester is
to place the measured workpiece on the worktable of the roundness
tester, align the rotation axis, and make the measuring head of the
roundness tester contact the outer circle of the workpiece and
rotate. The final measurement results are displayed through
sensors, amplifiers, filters and calculation circuits. If the
output is the figure of the actual contour, the concentric circle
template package can be used, and the difference between the radii
of the two containing concentric circles is taken as the roundness
error of a section. The roundness tester is suitable for parts with
high measuring accuracy requirements.
Two point method and three-point method When the shape of the
measured profile is an even number of edges and circles, the
roundness error can be measured by two point method. Use calipers,
micrometers, micrometers and other measuring instruments to measure
the maximum difference of diameter along the entire circumference
of the normal section circle, and take half of it as the roundness
error of the section circle,
Since the circles with the largest and smallest diameters are not
necessarily concentric, this method is only an approximate
measurement.
When the measured contour is an odd edge circle, the roundness
error cannot be measured with the two-point method, and the
three-point method can be used for measurement. Support the
measured workpiece with a V-shaped frame, measure the maximum
difference value of the workpiece rotation cycle with an indicator,
and take it as the roundness error of the section generally. Common
included angle of V-shaped frame α There are 60 °, 72 °, 90 °, 108
° and 120 °. The three-point method can also be used for
high-precision measurement in precision parts processing.
FAQ:
1. Where is your factory?
We are located in Shenzhen, China.
2. What quotation do you need to provide?
Please send us the drawings or samples of your products. The
following details shall be included:
drawings/quantities/materials/other requirements
3. How about the packaging?
Available as standard or customized.
4. If you benefit, will my drawings be disclosed?
No, we pay great attention to protecting the privacy of customers'
drawings. If necessary, we can also sign NDA.
5. What is the lead time of mass production?
Frankly speaking, it depends on the order quantity. If you don't
need tools, it usually takes 7-15 days after your deposit