Quality assurance begins at the source. Wstitanium implements almost strict control standards for raw materials. We have established strategic partnerships with the world’s top five sponge titanium suppliers. Every batch of raw materials must undergo 100% spectral analysis to ensure that the titanium purity is higher than 99.7%, and the concentration deviation of key impurity elements such as oxygen, nitrogen and hydrogen is strictly controlled below 0.15%. Our incoming material inspection laboratory is equipped with testing equipment worth over 2 million RMB. It conducts more than 3,000 material mechanical property tests annually. The variance coefficients of key parameters such as tensile strength and yield strength are all less than 2%, laying a solid foundation for the outstanding performance of Titanium Products from the root. Its reliability is comparable to aerospace-grade standards.
During the manufacturing process, we have deployed a digital quality control system covering the entire process. 52 high-precision sensors on the production line collect processing parameters in real time, including cutting speed (up to 5000 revolutions per minute), feed rate, coolant flow rate (accurate to ±5 milliliters per minute), etc. The data is updated every second. Our five-axis CNC machine tool is equipped with a laser interferometer to perform automatic precision calibration every 8 hours, continuously keeping the positioning error within 0.003 millimeters. Take the processing of a titanium alloy component for an artificial joint as an example. Each of the 80 processes is equipped with a quality gate, and the pass rate must reach 100%, which increases the first-time pass rate of the overall production to 99.2% and reduces the quality cost by 30%.
Our testing capabilities are the ultimate line of defense for quality. The detection accuracy of the three-coordinate measuring machine (CMM) is as high as 0.0015 millimeters. It completes over 150,000 dimensional measurements annually. The generated data reports are automatically compared with CAD models. Any component exceeding a tolerance of ±0.01 millimeters will be automatically isolated. For products in key application areas, we use industrial CT scanning for internal defect detection, with a resolution of up to 3 microns, capable of identifying pores or inclusions as small as 0.0001 cubic millimeters. This system is like a comprehensive “CT checkup” for each Titanium product, ensuring that its internal structural integrity meets the most stringent standards in the medical or aviation fields, such as the requirements for medical implants in accordance with ASTM F136.
The quality management system of Wstitanium has been certified by ISO 9001:2015 and AS9100D, which is an institutionalized manifestation of our commitment. We invest approximately 5% of our annual revenue in optimizing the quality system and training our staff. Each quality inspector receives over 80 hours of professional skills training annually. Our Statistical Process Control (SPC) system monitors over 200 key process parameters in real time. The process capability index (CPK) has remained consistently above 1.67 for a long time, which means that the defect rate of the products is less than 0.6 parts per million. Just as the zero-defect management concept is implemented in the Boeing 787 aircraft supply chain, our quality culture permeates every link, ensuring that every batch of Titanium Products delivered to customers has a high degree of consistency and reliability, helping customers keep the market return rate at the industry-leading level of 0.02%.