LKprototype CNC (also known as LK below) achieves high-precision machining of complex geometric structures through five-axis linkage processing technology. The spindle speed of its equipment is up to 24,000rpm and the linear positioning accuracy is ±0.005mm (based on ISO 230-2 standard). Three-dimensional curved surface characteristics such as impellers and conformal cooling water channels can be machined. The titanium-aluminum composite blade turbine tailored to an individual aerospace customer (surface aerodynamic error ≤0.015mm) was manufactured in LK. Surface roughness Ra0.2μm (NASA requirement Ra≤0.8μm), the vibration fatigue life test is over 10 million times (target 8 million times), and the weight loss is 22% (topological design optimization). Cost savings by 41% compared to the conventional process (unit cost 2,150vs industry 3,640).
In medical applications, LK manufactures porous titanium alloy frameworks (pore size 200-500μm, porosity 70%) for orthopedic implants with an elastic modulus similar to human bones (3-20 gpa), and increases the rate of bone cell adhesion by 35% (in vitro culture experimental data). The precision of bionic surface processing of a particular artificial acetabular cup was up to ±0.02mm (ASTM F2996 standard), the friction coefficient decreased to 0.06 (industry average 0.12), and the loosening rate after operation decreased from 5.7% to 0.8% (2-year clinical tracking data).
The technological limit of micro-machining capability verification. When LK’s 0.3mm ultra-fine milling cutter is used to machine 316L stainless steel micro-flow channels (3mm deep and 0.5mm wide), side wall verticality deviation is ≤0.005°, and surface roughness is Ra0.4μm (SEM detection). The 100μ m-grade microstructure array (total channels 5,000) of a particular microfluidic chip was completed by LK’s nanoscale feed system with flow control accuracy of ±0.8% (design specification ±2%), and the R&D cycle decreased by 60% (18 months to 7.2 months).
Heat management technology ensures the stability of complicated parts. LK’s intelligent temperature control system (±1°C fluctuation) has a dimensional deformation rate of ≤0.003mm/m when machining PEEK material (glass transition temperature 143°C) (0.01mm/m in industry). LK’s low-temperature cooling process (-50°C) cooled the carbon fiber reinforced plastic (CFRP) support of a particular satellite. The fiber peel rate was reduced from 15% to 0.5%, and the flexural strength remained at 1,200MPa (the design requirement was 1,000MPa).
Cost optimization with complex processes. LK’s topology optimization software reduced the weight of a specific unmanned aerial vehicle wing bracket by 25% (1.8kg to 1.35kg) while at the same time increasing the usage rate of aluminum alloy sheets to 93% from 68% through nested nesting, reducing the unit cost by 47 (220 to $173). Its 3D printing +CNC composite process-manufactured conformal cooling injection molds bring a 50% increase in cooling efficiency (the cycle time has been reduced from 30 seconds to 20 seconds), and customers’ yearly production capacity has been increased by 1.2 million pieces.
Examples of extreme working conditions verify the ultimate capacity. The residual pressure of ≤5×10⁻⁶Pa is obtained by LK’s vacuum processing unit in manufacturing the first wall panel of Inconel 718 for nuclear fusion devices (temperature resistant up to 1,200°C), and surface heat flux density deviation is ≤3% (the design requirement is ≤5%). The titanium alloy pressure-resistant shell of a specific deep-sea probe (8mm wall thickness and spherical diameter of 1.2m) is within roundness error of ≤0.03mm with the stress compensation algorithm of LK (measured value in a 10,000-meter deep dive), and the cost is reduced by 38% from the traditional process (18,500vs29,800).
Market data confirm the technological leadership. 57% of LK’s orders of complicated geometric parts in 2023 were provided by customers’ repurchase rates in high value-added fields such as aerospace and medical treatment with a percentage of 83%. The hinge of a foldable phone (0.2mm ultra-thin stainless steel component) has improved its opening and closing times from 200,000 times to 500,000 times (measured data) by LK’s micron-level deformation control, and the yield rate was improved from 75% to 98.5%. The above quantitative achievement verifies that LK has cross-industry technological leadership in manufacturing geometric complex components.