Drilling equipment quality appraisal

drilling equipment is based on the core principles of efficient power transmission and drilling parameter optimization. By optimizing spindle accuracy, feed system stability and tool material selection, it achieves the synergy of high speed, high precision and long life. It is widely used in fields such as PCB drilling, aerospace component processing, mining exploration and construction engineering. In electronic manufacturing, it is used for micro-hole drilling of multi-layer circuit boards; in the aviation field, it meets the demand for high-precision drilling of titanium alloy skins; in geological exploration, it achieves rapid penetration of hard rock layers; in the construction industry, it ensures the construction of large-diameter deep holes in pile foundation projects. Compared with traditional equipment, drilling equipment has the characteristics of high degree of intelligence, low energy consumption, and excellent vibration control. It is the core equipment of precision manufacturing and large-scale engineering.

Zhongke Testing is a product quality appraisal service organization registered with the court. It can provide drilling equipment quality appraisal services. It has a professional appraisal team and advanced instruments and equipment to provide fair and accurate appraisal results for drilling equipment quality appraisal.

As the complexity of drilling processes increases, related quality dispute cases have increased significantly. The judicial dispute focuses on:

1, performance index dispute: whether the spindle radial runout exceeds the standard, drilling position accuracy;

2, material defects: spindle bearing steel with high impurity content, carbide drill bit Co Insufficient content;

3. Process problems: deformation caused by residual stress in the spindle heat treatment, feed screw backlash >0.02mm;

4. Contract performance dispute: key modules are inconsistent with the technical agreement.

1. Equipment inspection

performs comprehensive inspection of drilling equipment, including appearance inspection, dimensional measurement, structural analysis, etc.

2. Testing and identification

Conduct corresponding performance tests on the equipment, such as drilling ability test, drilling accuracy test, etc.

3. Material analysis

A PCB manufacturer of the applicant signed a "6-axis precision drilling rig purchase contract" with an equipment company of the respondent, and it was agreed that the aperture accuracy is ±0.015mm. After being put into production, the microhole deviation rate reached 12%. The manufacturer argued that it was caused by the operator's failure to calibrate.

identification analysis results:

The quality analysis expert group discussed and comprehensively analyzed the relevant information of "drilling equipment", contract technical agreements, on-site investigation case materials and other data, and made the following quality analysis opinions:

The appraisal conclusion concluded that the core accuracy module of the equipment did not meet the agreement requirements, and systemic defects were the main cause of quality.

drilling equipment quality appraisal report mainly includes the following contents:

1. Client information

2. Appraisal equipment information

3. Appraisal basis (standards, power of attorney, etc.)

4. Identification method