Quality Assurance

Technical Assessment at Yichen

Embarking on the journey to production with meticulous precision, our team of seasoned engineers performs an exhaustive technical assessment of your part's design. This preliminary phase is critical, ensuring that every detail of your 3D and 2D drawings is scrutinized with surgical precision. We delve into the intricacies of material selection, surface finish, structural integrity, and the process itself, leaving no stone unturned in our quest for perfection.

Material Verification Process

At Yichen, we understand the importance of trust and reliability in the materials we use. Upon your request, we provide a comprehensive certification of the materials employed in crafting your parts. This documentation, sourced directly from the raw material manufacturers, encompasses a wealth of information. It includes the material's heat number, grade, dimensions, mechanical properties, and a detailed chemical analysis, offering you a transparent view of the quality and composition of the materials used in your parts.

Complete on-site inspection system

At Yichen, we understand that precision in manufacturing is paramount. That's why we've established a robust on-site inspection system that automatically examines the position of materials in real-time during precision machining. This cutting-edge technology ensures that every component is perfectly aligned, reducing the risk of errors and streamlining the production process. By catching and correcting any deviations immediately, we save time and resources, which is crucial in our just-in-time production environment

Quality control in the production process

Our commitment to quality is further reinforced by our adherence to the IATF 16949 standards, which guide our quality management system. At Yichen, our quality control team conducts meticulous inspections every two hours throughout the production process. This rigorous in-process quality control not only prevents potential issues but also ensures that our products meet the highest standards of excellence. We believe that quality is not just a goal, but a continuous journey of improvement, and our regular inspections are a testament to this commitment.

Full-dimensional inspection report

For each order, we offer detailed full-dimensional inspection reports upon request. These reports are exhaustive, encompassing a wide range of critical details:

• Part quantities are meticulously counted and recorded.
• Critical dimensions are precisely measured and documented.
• Thread specifications and tolerances are thoroughly inspected.
• Thicknesses and depths are accurately assessed.
• Part appearance is scrutinized to meet aesthetic standards.

This level of detail ensures that every aspect of your parts is accounted for, providing a clear and transparent record of our quality assurance process

Protective Packaging Protocol

We recognize the inherent risks in logistics and have developed a multi-layered packaging process to safeguard your parts during transit. Our four-tier protection system includes:

Wrapping paper for a initial layer of protection.

A sturdy paper or wooden box to house the parts securely.

This comprehensive packaging approach significantly reduces the risk of damage, ensuring that your parts arrive in pristine condition, ready for immediate use or further processing .