lkprototype has full automotive interior part prototype development capabilities. The covering materials include PP+GF30 (bending strength ≥120MPa), ABS/PC alloy (heat distortion temperature 125℃), and green TPO (VOC emission ≤50μg/m³). It can meet the functional and appearance requirements of the dashboard, door panel, and seat bracket parts. Let’s take a specific new energy vehicle customer as an example. It takes the IMD (in-mold decoration) process of lkprototype to produce the center console touch panel (thickness: 1.2mm±0.05mm), reducing the 8-week conventional development cycle to 12 days, and the surface hardness reaches up to 3H (pencil hardness). The price was reduced by 42% (from ￥3,200 per piece to ￥1,850 per piece). According to the 2023 SGS test report, the dimensional stability of lkprototype’s injection molded parts (shrinkage rate 0.4%-0.8%) is superior to the industry average of 1.2%.
In complicated curved surface processing, lkprototype’s five-axis CNC system (positioning accuracy ±0.005mm) and PU foaming molds (density 200-600kg/m³) once completed a door panel decorative strip prototype with carbon fiber texture (curvature radius R3mm) for a European automaker, with a surface roughness Ra≤0.4μm. The assembly clearance is within ±0.2mm. Through its innovative laser texture technology (resolution 1200dpi), a high-end brand customer has achieved micron-level pattern reproduction (0.1-0.3mm depth) on Alcantara composite material seat backrests, with 60% development efficiency enhancement (from 6 weeks to 2.5 weeks).
In terms of functional testing, the weather resistance test chamber of lkprototype (temperature -40℃ to +150℃, humidity ±2%RH) is able to supply 10 years of equivalent light aging simulation (xenon lamp irradiance 0.55W/m²), assisting a Japanese manufacturer in finishing the sun visor component UV stability test (color difference ΔE≤1.5). Its independently developed touch simulating system (with pressure feedback accuracy of ±0.1N) has been applied in testing the comfort of steering wheel gripping previously. The surface wear was less than 0.02mm following 1000 friction tests (under load 50N), far beyond industry standard.
In the field of light-weight innovation, lkprototype utilizes a combination of micro-foaming injection molding (weight reduction: 15% to 25%) and magnesium alloy die-casting (tensile strength: 280MPa) to create a dashboard frame (wall thickness: 1.5mm, size: 800mm×300mm) for a certain electric vehicle manufacturer. It weighs 63% less than traditional steel structures. And it passed the NVH test (vibration frequency 20-2000Hz, amplitude ≤0.05g). If its honeycomb sandwich structure composite material (surface density 1.8kg/m², flat compressive strength ≥1.5MPa) is applied to the ceiling prototype, the sound insulation performance is 8dB higher (the industry standard is 5dB).
lkprototype’s smart detection system (3D scanning precision ±0.02mm) and digital twin technology can compare the design data in real time (point cloud deviation ≤0.1mm). A domestic car brand thus reduced the trial assembly iteration of the door panel assembly from 7 to 2, and saved 860,000 yuan in development costs. Its flame-retardant material scheme (UL 94 V-0 grade, oxygen index ≥32%) has met the requirements of GB 8410-2006 in-vehicle burning test (burning rate ≤100mm/min) and has been applied to the high-speed rail chair prototype successfully. Up to now, the automotive interior prototype services of lkprototype have reached 14 of the world’s Top 20 automakers. It has cumulatively supplied over 50,000 IATF 16949 standard-compliant samples, and it is a core innovation partner in the trends of electrification and intelligence.