Innovation and regulations often clash more than anticipated. In medical manufacturing and aerospace manufacturing, strict regulations are not bad to have, given the high-stakes involved in these industries. These are just examples of the many industries where small mistakes can have huge and costly consequences. With the right quality assurance protocols in place, your company doesn’t have to view regulators negatively or fear compliance audits.
The best manufacturers for parts and components take quality assurance seriously. This includes setting in place quality controls, proper documentation processes, and auditable systems. Surprisingly, though quality assurance vs quality control are not the same thing, and one may matter more when hiring a fastener manufacturer in your industry.
Defining Quality Assurance vs Quality Control
Quality assurance is the foundational-level framework that guarantees quality outcomes. It defines what needs to happen and how work should be accomplished to prevent risks and defects. Quality assurance frameworks may include:
- Procedure documentations
- Risk assessments
- Training programs
- Vendor qualification
- Process improvement systems
Quality control is an outcome-driven undertaking during or after production processes and often includes a wide range of activities, including:
- Visual and technology-assisted inspections
- Coordinate measurement using CMM machines
- CCD Measurement
- In-process quality control (IPQC)
- Detailed quality reports
The difference between quality assurance and quality control is that the latter focuses on verifying outcomes, while the former is about improving the process. Take the example of medical manufacturing quality control, which heavily relies on measuring the dimensions of components or verifying materials that go into medical implants. Without this quality management system in place, precision and accountability are hard to achieve.
But then, manufacturers cannot rely on QC documentation alone. Manufacturing quality processes must be properly designed to support compliant, precise, and error-free production from the onset; otherwise, trust goes out the window, and the costs of fixing defects go through the roof. There’s just no way around regulations, but compliance and the best way to do that is to do it from the very beginning.
Where QA and QC Appear in the Manufacturing Workflow
By now, it’s easy to trace quality assurance systems to the planning stage. In aerospace engineering and medical device quality systems, these may involve:
- Material verification (Mill Test Certificate verification)
- Establishing standard operating procedures and statistical process controls
- Implementing clear documentation records for inspections, tests, and process parameters
There are key guiding standards and principles that can make QA easy for these industries. These include ISO 13485 quality management and AS9100 quality requirements. With proper adherence to these quality systems, you can hit moon-shot targets in production efficiency, product performance and reliability.
Once production starts, QC takes over. The primary concern then shifts to identifying and fixing defects before assembly and shipping. QC processes must be integrated into every workflow for your parts to sail smoothly through compliance, and also to reduce the money and time spent on the factory floor.
QC activities typically involve
- Inspecting and certifying the raw materials like titanium, alloys, and steel
- In-process checks for dimensional accuracy
- Mechanical tests of implants and under-the-hood manufacturing parts for medical and aerospace (tensile strength, density, load bearing capacity)
- Environmental tests of bolts and nuts, surgical screws, and aerospace fasteners (corrosion, heat resistance, UV resistance)
There is one place where QA and QC meet and provide feedback and feed-forward for engineers, and that’s in documentation. QC helps refine QA processes for consistently desirable outcomes in large batch production. On the other hand, QC protocols can easily be pulled from the best practices outlined in QA for holistic regulated manufacturing compliance.
Regulatory Expectations in Medical and Aerospace Manufacturing
When certifying products, parts, and systems as safe, regulators expect to see strong and auditable QA/QC systems and documentation. The ISO 13485 quality management, just like the Quality System Regulation by the FDA, rigorously reviews your control documentation for:
- Design
- Material/process traceability
- Validation
- Corrective action
- Adherence to industry standards
The rich impact of these requirements encompasses all medical implant applications and orthopaedic implants. For precision parts for medical implants, documentation must be established for QA and QC from early on, before production conclusion for the best outcomes in patient safety. Otherwise, regulators may force you to start everything over.
In the aerospace industry, the FAA and other regulators expect to see proactive risk management. From design to material sourcing, precision parts for aerospace must meet AS9100/AS9120 standards as a foundational step towards full compliance. This requirement applies to aerospace fasteners, aero structure components, and corrosion resistant components or aircraft.
Regulators also often check the manufacturer’s level of adherence to Engineering Specifications. That is to say that every precision parameter whether torque, geometry, or materials, must meet the designated performance criteria. Strength, durability, thermal resistance, and abrasion resistance records of parts and products are closely scrutinized.
The Cost of Quality Failures in Regulated Industries
Failure is expensive. Even a small number of nonconforming surgical components can lead to recalls, fines, or failure to launch. Similarly, small mistakes in the aerospace fasteners and components can ground aircraft fleets.
But almost each of these failures can be traced to QA. Common pitfalls include insufficient or missing documentation, unverified processes, and inadequate training. QC is good to have, but it often misses systemic causes of compliance failure.
How integrated QA/QC systems improve audit readiness and scalability
Even though one carries more weight than the other, a hybrid approach that balances QA and QC is beneficial in many ways, including:
- Centralized records and traceability shorten audit trails
- Non conformance is automatically flagged in real-time monitoring
- Process consistency and human-error reduction across workflows
- Streamlined corrective and preventative actions (CAPA)
Conclusion
Robust quality assurance frameworks reduce the costs of rework and non-compliance. More importantly, QA safeguards human life, and there is no greater incentive than that.