Numerically controlled machine tools process all kinds of materials, and among them, aluminum parts are one of the most processed. When using CNC machine tools to process aluminum parts, if you want to make the processing models and specifications more stable, you must pay attention to these areas.
The condition of the machine tool. Whether the processing is stable or not depends on the condition of the machine tool itself. Before processing, everyone should check the machine tool itself and start the industrial equipment after everything is normal.
The raw material refrigeration problem. Aluminum die castings may be deformed after cooling. Such things are generally unavoidable. At this time, attention should be paid to the application of diesel engine refrigerant. When carrying out accurate and precise measurements in power, the deformation of raw materials must also be considered.
Unscientific processing technology can easily lead to deviations in the model specifications of aluminum die castings. To ensure the basic processing technology (such as "rough first and then finish, face first and then hole, first many and then spicy small noodles" in the Machining of CNC machine tools, or "reduce the frequency of clamping and install as much as possible, use tooling fixtures as much as possible" It is necessary to avoid the machining deviation caused by iron pins on aluminum parts as much as possible for most of the important links of basic processing technology.
The basic parameters cutting rate, cutting speed, cutting factors, and tool compensation are all cutting factors that impair the efficiency of processing, so special attention should be paid. Tool selection
When
Machining Aluminum parts, special tools should be used as much as possible. Such tools are generally more purposeful. For example, turning tools special for aluminum milling generally have larger rake angles and helix angles, sharper cutting edges, which are more conducive to the processing of aluminum parts (such as anti-chip buildup), and the processed performance indicators will be stronger.
The aluminum material at the stress field level is too soft, so pay attention to the clamping range as much as possible. In addition, during processing, the aluminum parts are roughed intact and left for a period of time before the next production process is carried out to remove the stress field.
In addition, it is necessary to pay attention to the milling surface and the demand of cutting fluid during the processing of aluminum parts. There are many factors that damage the efficiency of aluminum processing, so it needs to be handled flexibly during processing, and the actual problems are analyzed in depth. Stable machine tools, effective processing techniques and tools, and the technical strength of their operators are all factors that impair product quality.
When choosing tools to process aluminum parts, use special tools as much as possible. Such tools are generally more targeted. For example, lathe tools for aluminum milling generally have larger rake angles and helix angles, and the cutting edges are sharper, which is more conducive to the processing of aluminum parts (such as anti-chip buildup), and the processing performance will be stronger.
In addition, special attention should be paid to the difficulty of milling and the amount of cutting fluid required in the processing of aluminum parts. There are many factors that damage the credibility of aluminum processing, so it should be handled flexibly during processing, and specific difficulties should be analyzed in detail. Stable machine tools, reasonable processing techniques and tools, and the technical level of operators are all factors that harm product quality.
Unreasonable processing technology can easily cause errors in specifications and models of cast iron parts. In ensuring the basic processing technology (such as cutting CNC machine tools
Most of the basic processing technology key links such as "rough first and then refined, surface first then hole, first many then spicy noodles" or "reduce the number of clamping and use as much as possible to form tooling and fixture" in the use of fixture tooling), we must try our best Reduce machining errors caused by iron pins on aluminum parts.
There are many reasons for the deformation of aluminum parts, which are often related to raw materials, parts appearance, production and processing specifications, etc. There are several important aspects: the deformation caused by the welding stress of the blank, the deformation caused by the cutting force and the cutting heat, and the deformation caused by the clamping force.
