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Dongguan CNC factory shares with you the management of product production

The information comes from:Internet Posted on:2022-12-05

Dongguan CNC processing plant In a modern enterprise, we should not only pay attention to the technical transformation and the application of advanced manufacturing technology, but also strengthen the production management within the enterprise, so as to improve the efficiency of the enterprise. To reduce or eliminate the impact of burr on product quality, in addition to the above, strict production management is also essential. Because in the process of parts, the workpiece in the transportation, clamping, assembly will be accidental collision, knock damage, thus forming burr, leaving hidden danger to product quality. Only by strengthening the management, these collisions and knocks will be significantly reduced, and the damaged and unqualified workpieces will be screened out. At the same time, it also avoids the man-made barbaric operation.
1. Burr detection method and selection principle
Dongguan CNC processing plant There is no unified standard to evaluate the specification of burr and edge. The specific requirements for burr and edge are seldom indicated in design. SMC (Society of production and processing engineers) and ASME (American Society of Mechanical Engineers) in the United States have a more in-depth study on this aspect, but they have not formulated a national standard. Dongguan CNC processing plant In order to evaluate the deburring quality of the tested workpiece, the company divides the deburring quality into 1-10 grades according to the evaluation rules of the parameter range of surface roughness. Whether this quantitative method can reasonably and correctly reflect the deburring quality remains to be verified in practice. Description: 0.005-0.01mm It is the initial range of the first level, and the values of the other levels form an equal proportion sequence
Generally speaking, the deburring workpiece should be cleaned and the internal burr should be blown dry before burr detection. If necessary, the appropriate detection method should be selected according to the performance requirements and appearance of the workpiece to be detected (as shown in the table below).

name

Method steps

Scope of application

Tactile

Touch the deburring part with your hand. It depends on your hand feeling. If you stick your hand, you will think that the deburring has not been completely removed

It is suitable for products with certain appearance requirements

Visual method

The internal burr can be cut and observed with naked eye

It is suitable for products with certain precision requirements in appearance and interior

Hanging method

The internal burr can be cut and moved along the edge with a cotton thread. If the cotton thread is caught or damaged, the burr removal is not complete.

Applicable to products with specific performance requirements; Such as servo valve valve port and sealing performance requirements of higher products

Amplification method

The internal burr can be dissected and observed with 5-10 times magnifying glass

It is suitable for products with higher requirements for product performance and accuracy

Quantitative method

Measure the longitudinal or transverse section of the workpiece with universal tool, and measure the width of burr on the edge of the workpiece

It is suitable for products with high performance and good sealing

Photographing

The workpiece is photographed on the profilometer with magnifying performance, and the burr shape and relevant parameters can be quantitatively detected according to the photos

Suitable for high precision products

In the process of quality management and inspection, we should grasp the principles of detection methods
The advantages and disadvantages of various burr detection methods are analyzed and compared, and the detection method suitable for the accuracy performance requirements of the unit products is selected.
➁ select the appropriate method according to the technology, experience and detection instrument of the unit.
The testing method should be as simple and economical as possible, and the parts should not be damaged and the smooth production should not be affected.
5. Conclusion
Dongguan CNC processing factory thinks that burr phenomenon is not only a simple but also a complex problem. In practical work, if the deburring method is appropriate, it will improve the quality of products and reduce costs. Otherwise, it will not only affect the improvement of production efficiency, product quality, but also affect the cost of products. To be specific, some products have higher requirements. After careful deburring, because the burr is relatively firm, it is difficult to fall off if it is not processed by cutting, and it is not necessarily forced to eliminate it; Some high-precision products, especially the products with high safety performance and high value, such as aircraft and satellite products, require the complete elimination of burr. Even if the burr is very firm, it needs to be removed after cutting. Otherwise, in case of burr falling off, it will cause immeasurable losses. Therefore, we must pay attention to minor problems such as burr.

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