When sourcing CNC precision machining services, buyers often prioritize price and delivery. However, overlooking factors like capabilities, tolerances, and production processes can impact quality and success. This blog explores essential aspects to consider when choosing a machining partner to ensure optimal results for your project.
Capability vs. Tolerance: Going Beyond a Quote
Basing your decision on price alone can overlook key factors that affect your project’s success. In precision machining, one of the most important aspects to evaluate is the supplier’s ability to meet tight tolerances. To assess this, request a demonstration of their Cpk (process capability index) at your tightest features. A high Cpk indicates that the supplier can consistently meet tolerances, ensuring your parts perform as required. Additionally, review the supplier’s metrology programs and their approach to gauge repeatability and reproducibility (R&R) testing. This guarantees that your parts will meet the desired specifications consistently throughout production.
Toolpath and Fixturing Maturity
Effective toolpath strategies and fixturing methods are crucial for precision machining projects. Advanced techniques like 4-axis and 5-axis machining improve efficiency by reducing setups and minimizing stack-up errors, which are common with complex geometries. These methods provide better control, enhancing both speed and quality. Modular fixturing further speeds up iterations and reduces setup times without compromising repeatability. This is especially beneficial for complex parts requiring multiple iterations.
Additionally, integrating processes like EDM (Electrical Discharge Machining) or waterjet cutting for delicate features ensures greater reliability and reduces the risk of damage to sensitive areas, improving overall project success.
Managing Revisions and Materials
Effective revision control and material management are crucial yet often overlooked aspects of CNC machining. A dependable supplier should have a digital revision control system to track and implement design changes accurately, especially during multiple revisions. Additionally, ensure that the supplier provides certified material pedigrees and lot control to guarantee that the materials meet required standards.
Without proper material traceability, you risk receiving substandard components. Lastly, verify that the supplier has a clear Non-Conformance Report (NCR) and Material Review Board (MRB) process to address any issues quickly, preventing delays and keeping your project on schedule.
Why Choose WessDel
WessDel is a leader in CNC precision machining services. With a range of capabilities including 3-, 4-, and 5-axis milling, turning, EDM, and waterjet cutting, WessDel can handle complex projects with precision. The company operates a 24,000-square-foot, temperature-controlled facility, ideal for both prototypes and full-scale production runs.
In addition to its broad capabilities, WessDel’s quality assurance is unmatched. The company is certified to AS9100D and ISO 9001:2015 standards, with a heritage in Mil-I-45208A. These certifications ensure that every part produced meets the highest industry standards for quality and precision.
Contact WessDel for CNC Precision Machining Services
Looking for reliable, high-quality CNC precision machining services? WessDel is the partner you need. With advanced capabilities, a commitment to excellence, and decades of experience, WessDel ensures your projects exceed expectations. Contact WessDel today to learn how our CNC precision machining services, turning, and custom machining services can drive success.