1、 Preparation before processing

Material inspection

Before performing size processing and shape control on purified aluminum profiles, strict inspection of the raw materials of the aluminum profiles is necessary. Check its purity, surface quality and other indicators to ensure that the material meets the production requirements of purified aluminum profiles. For example, the purity of aluminum profiles should meet certain standards to avoid impurities affecting subsequent processing accuracy and performance.

At the same time, it is necessary to check whether the initial dimensions of the aluminum profile are within the allowable tolerance range, as this will affect the allowance setting for subsequent processing.

Selection and Debugging of Processing Equipment

Select appropriate processing equipment based on the precision requirements for purifying aluminum profiles. For high-precision dimensional machining, equipment such as CNC machining centers are a good choice. These devices can achieve complex dimensional machining through precise programming.

Before processing, it is necessary to debug the equipment. For example, adjusting the position of the tool and cutting parameters. For cutting tools, it is necessary to ensure their sharpness and installation accuracy to ensure the flatness of the cutting surface. At the same time, setting parameters such as feed rate and cutting depth of the equipment will directly affect the accuracy of machining dimensions.

2、 Dimensional processing method

Cutting and processing

Cutting is an important step in purifying the size processing of aluminum profiles. Sawing or laser cutting can be used. Sawing is suitable for thicker aluminum profiles, and with high-precision sawing machines, the cutting length can be precisely controlled. For example, in the processing of aluminum profile partitions in electronic cleanrooms, precision sawing machines are used to cut aluminum profiles into the required length, with an error controlled within ± 0.1mm.

Laser cutting has higher precision and flexibility, and can cut complex shapes and fine dimensions. It achieves cutting by melting or gasifying aluminum profiles with high-energy laser beams, with a small incision width and a small heat affected zone, which is beneficial for maintaining the performance of aluminum profiles.

Drilling processing

Drill holes on purified aluminum profiles for installing connectors and other components. The use of CNC drilling machines can accurately control the position and aperture of drilling holes. During the processing, the appropriate drill bit should be selected based on the thickness of the aluminum profile and the required aperture. And, it is necessary to ensure that the speed and feed rate of the drill bit are appropriate to prevent hole diameter deviation or damage to the surface of the aluminum profile during the drilling process.

3、 Shape control measures

Bending Forming

For some purified aluminum profiles that require bending shapes, mechanical bending or CNC bending methods can be used. Mechanical bending is the process of applying pressure to aluminum profiles through molds to bend them. In this process, it is necessary to choose a suitable mold based on the cross-sectional shape and bending radius of the aluminum profile. Numerical control bending is achieved by controlling the bending equipment through a program, which can more accurately control the bending angle and the size of the bent part.

Extrusion molding (for complex shapes)

Extrusion molding is an effective method for purifying aluminum profiles with complex shapes. During the extrusion process, the aluminum billet is extruded through a mold with a specific shape to obtain the desired shape. This process requires precise control of parameters such as extrusion speed, temperature, and pressure. For example, in the production of curved aluminum decorative strips for purification workshops, precise control of extrusion process parameters can ensure that their shape meets design requirements and their dimensional accuracy reaches a high level.

4、 Inspection and correction after processing

Size inspection

After processing, a comprehensive inspection of the dimensions of the purified aluminum profiles is required. Linear dimensions can be measured using measuring tools such as calipers, micrometers, etc. For complex shaped dimensions, a coordinate measuring instrument can be used. By comparing with the design dimensions, identify the size deviation.

Shape detection

For shape detection, methods such as template comparison or optical inspection can be used. For example, comparing the processed bent aluminum profiles with standard samples to check if the bending angle and curvature meet the requirements. Optical inspection can obtain shape data of aluminum profiles through technologies such as laser scanning, and compare it with the design model.

Corrective measures

If it is detected that the size or shape does not meet the requirements, for situations where the size deviation is small, it can be corrected through secondary processing. For example, adjusting dimensions through precise grinding. For shape deviation, it may be necessary to perform bending or extrusion forming operations again, or adopt local shaping methods to ensure that the size and shape of the purified aluminum profile fully meet the design requirements.