Last updated on June 24th, 2024 at 09:22 am
Get Rapid First Article Inspections at Approved Sheet Metal
When mass-producing a high-precision part, conducting a first article inspection (FAI) ensures that buyer dimensions remain accurate throughout the production lot. Though quality inspectors typically inspect only one to three pieces out of a batch, the process can be time-consuming if every single dimension of a part is examined.
Want to save cost and time without sacrificing quality on first article inspections?
Table of Contents
- 1 3 Tips for Smarter (and Faster) FAIs
- 2 Rapid First Article Inspections at Approved Sheet Metal
- 3 Recommended Default Sheet Metal Tolerances
- 4 First Article Inspection FAQ
- 4.0.1 What is a first article inspection (FAI), and why is it important in high-precision sheet metal part production?
- 4.0.2 How is the scope of a First Article Inspection (FAI) determined?
- 4.0.3 How can I save time and cost on first article inspections (FAIs) without compromising quality?
- 4.0.4 Are there any industry-specific standards or guidelines for conducting First Article Inspections (FAIs)?
- 4.0.5 How can I choose the right manufacturer for my precision sheet metal parts production needs?
3 Tips for Smarter (and Faster) FAIs
- Measure only what matters. Get specific on what features need to be inspected. If you submit a generic print or an approval sample print, the inspector will measure every single dimension on that map—even when they don’t have to. Identifying which specifications and features need to be assessed will save you time and money.
- Skip measuring for laser accuracy. Hole to hole laser or machine tolerances are 99% accurate, so measuring for laser correctness might not be the best use of your time. You can cut first article work in half by opting by requesting that forming dimensions are measured instead.
- Choose the right manufacturer. A good manufacturer can deliver your precision sheet metal parts on time. A great manufacturer will not only fulfill your production order, they’ll do your quality inspections as well.
Rapid First Article Inspections at Approved Sheet Metal
When it comes to FAIs, we adopt our rapid prototyping mentality to your paperwork without the bureaucracy. You can come to us for the complete package—rapid prototyping, producing a show part, mass production, and FAIs—and we’ll always deliver top quality, on time and on budget.
ASM is certified for the following high-precision industries:
We are:
- ITAR Registered
- NADCAP-accredited
Want to work with us on your next project? Request a quote and let’s get your parts made—and inspected!
Recommended Default Sheet Metal Tolerances
| DIM | Tolerance (MM) | Tolerance (Inches) | Description |
| A | ± 0.13 | ± 0.005 | Sheared Edge to Hole |
| B | ± 0.13 | ± 0.005 | 2 Holes on One Surface |
| C | ± 0.25 | ± 0.010 | Formed Edge to Hole |
| D* | ± 0.76 | ± 0.030 | Holes Across 2 Bends |
| E* | ± 0.76 | ± 0.030 | Holes Across 4 Bends |
| F | ± 0.25 | ± 0.010 | Sheared Edge to Bend |
| G | ± 0.38 | ± 0.015 | Across 2 Bends |
| H* | ± 0.76 | ± 0.030 | Formed Part |
Noted dimensions are to be taken while the part is in a restrained condition. Noted dimensions are for parts within a 12” envelope.
* Dimensions D, E and H are not recommended forms of dimensioning
These tolerances are recommended and best practices. We can obtain tighter tolerances (depending on part geometry/ construction), contact us for more information
First Article Inspection FAQ
A first article inspection (FAI) is a critical step in high-precision part production. It involves examining the initial pieces of a production batch to ensure that the dimensions and specifications meet the buyer's requirements. FAIs are essential to maintaining accuracy and quality throughout the production process.
The scope of a First Article Inspection is typically determined by reviewing the customer's specifications and requirements. It involves identifying which features, dimensions, and characteristics of the part need to be inspected to ensure compliance. This focused approach helps save time and resources during the inspection process.
You can save time and cost on FAIs by following these tips:
- Measure only what matters: Identify specific features and specifications that require inspection, rather than examining every dimension on a part.
- Skip laser accuracy: For hole-to-hole laser or machine tolerances that are 99% accurate, consider focusing on measuring forming dimensions instead.
- Choose the right manufacturer: Opt for a manufacturer who can not only fulfill your production order but also conduct quality inspections.
Yes, there are industry-specific standards and guidelines for FAIs. For example, in aerospace and defense, AS9102 is a widely recognized standard for FAIs. In the automotive industry, the AIAG PPAP (Production Part Approval Process) provides guidance. These standards outline the documentation, procedures, and reporting requirements for conducting FAIs in their respective industries. It's essential to be aware of and adhere to these standards when conducting FAIs in specific sectors.
Choosing the right manufacturer for precision sheet metal parts fabrication is crucial. Consider the following factors:
- Expertise: Look for manufacturers with experience in your specific industry or product type.
- Quality Control: Inquire about their quality control processes and certifications.
- Capacity: Ensure they have the capacity to meet your production volume requirements.
- Lead Times: Ask about production lead times to ensure they align with your project timeline.
- References: Check for customer references and reviews to gauge their reputation.
These considerations will help you make an informed decision when selecting a manufacturer for your precision parts.
