lkprototype achieves dimensional tolerance control accuracy of ±0.005 mm in metal machining, the highest grade of the ISO 2768-mK standard. An example of aviation titanium alloy part machining shows that, following 72 hours of continuous operation of its five-axis CNC machine tool, position repetition precision is still ±1.2 microns, and thermal deformation error is limited to 0.8 microns /℃ by the temperature compensation system. According to ASME B46.1 surface roughness standard, the surface roughness Ra value of the aluminum alloy parts is stable between 0.4-0.6 microns, and the waviness Wt is maintained below 1.2 microns, much better than the industry average Ra 1.6 microns.
In injection molding, lkprototype mold machining tolerance is up to ± 0.01mm, and the mold flow analysis system squeezes the prediction error of the molding shrinkage to 0.08%. According to the production data of an automobile turbine part, wall thickness deviation of polyamide 66 material is ±0.15 mm (industry standard ±0.3 mm), and real-time control of the cavity pressure sensor reduces the possibility of flash generation by 83%. For tiny medical components (<5mm), its micro-milling tech achieves a detail resolution of 0.02 mm as well as a surface roughness Sa value of <0.8 microns, meeting the implant processing requirements of ISO 13485 medical device standard.
In terms of consistency in mass production, the SPC process control of lkprototype improves the CPK value to above 2.0. Statistical data of a metal housing project for consumer electronics show that during the continuous production of 50,000 pieces, the average deviation of the critical dimensions is only 0.003 mm (allowable range ±0.015 mm), standard deviation σ=0.0012 mm, and the defect rate at the 6σ level is less than 0.002%. The visual inspection system has a 12K resolution industrial camera, with a detection speed of 300 pieces/minute and a misjudgment rate of <0.05%, which is 40 times the efficiency of manual detection.
In additive manufacturing, metal 3D printing layer thickness accuracy is as much as ±5 microns, the density of a 316L stainless steel part is as much as 99.97%, and residual stress distribution standard deviation σ=12MPa (industry average σ=35MPa). For large-size parts (>500mm), thermal deformation compensation algorithm limited the accumulative Z-axis error to 0.08mm/m, and the roundness error of a satellite support part after post-processing was less than 0.01mm, which improved the accuracy by 5 times compared with the traditional process.
The environment adaptability test shows that the positioning accuracy deviation of lkprototype processing system is ≤±2μm under the condition of temperature change of ±5℃ and humidity 60%±15%RH. Its constant temperature workshop (20℃±0.5℃) and active damping foundation (vibration amplitude <0.5μm) ensure ultra-precision machining stability. An example of optical lens processing shows that after 48 hours of continuous processing, the PV value of the surface shape accuracy still guarantees λ/20 (@632.8nm), meeting the Class 3 accuracy grade of the ISO 10110-5 optical component standard.
For special materials, the tool wear compensation system of milling nickel-based superalloy Inconel 718 controls the size drift to 0.008mm/100 pieces, thereby improving the stability by 72% compared to the traditional method. In carbon fiber composite material processing, the lamination defect appearance is reduced to 0.3%, the cutting force fluctuation range is narrowed to ±8N, and the surface fiber exposure length is less than 50μm, meeting the NASM 1312 standard of aerospace CFRP components.
Through laser interferometer calibration, the linear axis positioning accuracy of lkprototype can reach ±0.5μm/m, and Angle deviation is less than ±1.5 arcseconds. The project statistics of precision mold processing show that the straightness error in 500mm stroke is less than 1.2μm, and via the closed-loop grating system with 0.1μm resolution, the actual nanoscale processing capability is realized. These statistics have been experimentally verified by the PTB Laboratory of Germany, and it confirms that the processing capability is up to the highest grade of accuracy in the VDI/DGQ 3441 standard.