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Capability Studies & Statistical Analysis

Statistical Process Control

  • SPC
  • Gage R&R
  • PPAP


SPC (Statistical Process Control) is the statistical analysis of measurement data collected from a manufacturing process to determine its viability and make educated corrections to a process. SPC is an integral step in the production part approval process. Besides requiring a significant number of repetitive measurements (for which DCC-CMM’s are nearly indispensable) complex data compilation, analysis and interpretation are required. Q-PLUS routinely provides statistical results (such as Cpk, Cp, Ppk, Pp, Sigma level, etc.) supported by quantitative measurement data and depicted in a variety of graphical analyses. 


Capability Studies provide a greatly enhanced examination and validation of manufacturing processes. These are commonly utilized in high-production applications such as automotive, components and commercial products. Q-PLUS provides many types and degrees of capability studies tailored to any application or special customer requirements.


An important component of any comprehensive capability study is analysis of the measurement process itself. A Gage R & R (Repeatability & Reproducibility) study is a common way to determine what amount of error in a process is due to measurement uncertainty.


PPAP or Production Part Approval Process is a standard requirement in the automotive industry that occurs at the beginning of or after a change to a manufacturing process.

Recent News

Q-PLUS LABS 3D SCANNING CAPABILITIES EXPAND WITH REVOLUTIONARY AUTOMATED AND HIGHLY ACCURATE STRUCTURED LIGHT SCANNING

October 2017: Q-PLUS Labs introduces a fully automated 3D scanning solution that uses the latest cutting-edge technology in both robotics and structured light 3D scanning systems. Combining both speed and accuracy, automated 3D scanning can help accelerate the processes of manufacturing and production by improving the time it would usually take if using more traditional methods of obtaining measurement data. CMMs have long held favorability for automated inspection due to ease of programming, however they typically offer only single point by point sparse measurement data with contact probing on the part's surface. Comparatively, structured light scanning has made tremendous progress that now closely approaches the accuracies of CMMs, but captures millions of measurement points in seconds and without any contact to the part. Whether you are looking to outsource your inspection or integrate a new system within your current in-house quality process, Q-PLUS Labs offers automated 3D scanning services and products using the latest developments in robotic scanning to not only reduce the cost for inspection, but also speed up your production process. Click here to request more information.


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Join Q-PLUS at WESTEC 2017

September 2017: Join Q-PLUS Labs at WESTEC 2017 in booth #2319 at the Los Angeles Convention Center in Los Angeles, CA - September 12th-14th. Come see our selection of metrology equipment, and discuss your specific needs for measurement products & services with our application engineers & staff. There's also a chance to win $500 in Q-PLUS Bucks! Click here for FREE admission (a $50 value).


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Q-PLUS Labs Expands 3D Scanning Arsenal with Big Investment in 3D Scanning

August 2017: Q-PLUS Labs' already impressive arsenal of 3D scanning equipment and capabilities expands even further with the addition of several systems from prestigious 3D scanning manufacturers. These additions will provide customers with repeatable, precise data and structured light scanning accuracies down to 3 microns. In addition to increasing Q-PLUS' array of 3D scanning capabilities, another investment was made to contribute to the company's service offerings for large structured light scanning with a highly advanced, high-end photogrammetry system. Ever committed to providing the best value to customers, Q-PLUS is currently in the process of developing the next level in cutting-edge 3D scanning automation, which we are excited to offer soon! Request a quote

3D Scanning Additions