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          Industry applications

          Mercedes-Benz turbine blade 3D inspection

          Mercedes-Benz turbine blade 3D inspection case

          Mercedes-Benz needs to conduct random inspections of the turbine blades produced to see if there are any deviations between the actual products and the design drawings in order to improve the processing technology, improve the quality and enhance the competitiveness of the enterprise.

          Practical problems

          1. The positive and negative profiles of the turbine blades must be measured. The amount of data obtained by the traditional measurement method is insufficient, and the inspection of the turbine blades cannot be performed.

          2. The customer has very high precision requirements for the three-dimensional data of the turbine blade, and the overall error needs to be controlled below 0.02 mm.

          Hualang solutions

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          Mercedes turbine blade scanning site

          Mercedes-Benz Automobile Manufacturing Co., Ltd. is a company specializing in the production of auto parts. Previously, it used traditional measurement methods to obtain Mercedes-Benz turbine blade data. It was not only time-consuming and labor-intensive, but also has low detection accuracy. The measurement efficiency is very low and it is not suitable for the rapid development of the market. Mercedes-Benz blades are more complex in shape and have many curved surfaces. The customer mainly checks whether the size of the processed product and the computer design drawing are not deviated in order to improve the processing technology and improve the processing efficiency.

          1. 3D photogrammetry:

          For Mercedes-Benz turbine blades, Hualang engineers first used the 3D photogrammetry system (HL-3DP) to capture multiple images of the turbine blades. Through the 3D ranging method, the HOLON3DP software automatically combined these images and calculated them. A 3D coordinate of the center of the code point calculates the 3D coordinate value of the key information point on the surface of the object.

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          3D photogrammetry

          2. 3D scanning:

          The 3D coordinate data of Mercedes-Benz turbine blades was imported into the HOLON3DS scanning system, and the high-precision 3D data of Mercedes-Benz turbine blades was quickly obtained using a 3D scanner (HL-3DS). The three-dimensional scanner has the characteristics of extremely fast scanning speed, high precision and high stability. The 3D photogrammetry system (HL-3DP) and the 3D scanner (HL-3DS) can be used to correct the point cloud information of the large-area surface, greatly improving the overall point cloud stitching accuracy of the 3D scanner and improving work efficiency. It takes only 10 minutes to get 3D data of Mercedes turbine blades with an accuracy of 0.01mm.

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          Mercedes turbine blade 3D data

          3. comparison test:

          The acquired Mercedes turbine blade 3D data import detection software Geomagic Qualify can quickly detect the difference between the Mercedes-Benz turbine blade (CAD) model and the manufactured parts of the product. Geomagic Qualify can display the results in an intuitive and easy-to-understand graphical comparison. The difference.

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          Mercedes-Benz turbine blade comparison test chart

           

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          Mercedes-Benz turbine blade error analysis diagram

           

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          Mercedes-Benz Turbine Blade Error Analysis Table

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