What are the measures to ensure machining accuracy?
During the machining process, it is crucial to ensure the accuracy of the product, especially in high-precision fields such as aviation, aerospace, electronics, and medical industries. In order to make the product meet higher precision requirements, a series of measures need to be taken to ensure the yield rate of machining. This article will introduce some common measures.
1. Design good drawings
The accuracy and design quality of the drawings can directly affect the accuracy of machining. Therefore, making high-quality machining drawings is the primary condition to ensure high-precision machining. When making drawings, you need to pay attention to the following aspects:
·Dimensional accuracy: The dimensional error should be less than the required maximum dimensional tolerance, and process limitations should be taken into account.
·Surface features: Various surface features such as flatness, roundness, and cylindricality should be specified on the drawings.
·Material selection: Select materials that meet the requirements and indicate the material category on the drawings.
2. Choose the right machine tool
Choosing the right machine tool is also an important factor in ensuring machining accuracy. When purchasing a machine tool, you can consider the following aspects:
·Stability: Choose a stable, compact, and weight-appropriate machine tool, which can reduce adverse factors such as vibration and resonance and improve machining accuracy.
·Precision: The precision of the machine tool itself is also very important, and a machine tool that meets the processing requirements should be selected.
·Control system: The control system should be high-precision, responsive, and able to automatically compensate and adjust residual errors.
Due to business needs, Newland has updated its overseas high-precision vertical five-axis machining center, such as Austria EMCO, Germany DMG, Swiss GF, USA Hurco, USA Hardinge, and several Horizontal four-axis machining center.
3. Use high-quality tools and fixtures
Selecting high-quality workpieces and fixtures can reduce processing errors and improve processing quality. In order to ensure the quality of workpieces and fixtures, the following measures need to be taken ·Manually select tools and fixtures, but select products of qualified quality.
·Use a system that automatically selects tools and fixtures, but these systems need to be regularly maintained and maintained.
·When selecting fixtures, consider the accuracy requirements of the workpiece and select the appropriate fixture type.
4. Strict processing management and testing
During the processing, strict processing management measures need to be adopted to ensure that the processing has high precision. These management measures include:
·Pretreatment: Clean, calibrate, measure and other steps before processing to reduce processing errors. ·Process control: During the processing, the process parameters need to be adjusted to ensure the quality and precision of the processing. ·Inspection process control: During the processing, various measurements and inspections are required on the workpiece to ensure that the processing accuracy meets the requirements. If it does not meet the requirements, the processing parameters can be adjusted in time.
