What mechanism do you use to control variable special characteristics?

A

Andrews

#1
What control mechanism do you use to control variable special characteristics?
a) Pre-control
b) Xbar - R chart
c) X- MR chart
 
Elsmar Forum Sponsor
A

Andrews

#2
selection

How do you select special characteristics? Do you select characteristics that do not affect fit,form,function,safety or next operation also ?
 
S
#3
To answer your first question, start with the X-bar & R. No reason, its just that it appears easier to me.

Special characteristics should be selected from characteristics that have a "special" effect on the fit, form, function, safety, environment and operations of the product and subsequent processes.
A "special" effect IMO, is one that would render the product or process non-usable or inefficient, unsafe, a hazard to the environment and/or create these incidents in subsequent processes.
 
Thread starter Similar threads Forum Replies Date
R FOD (Foreign Objects and Debris) Control mechanism AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 6
V Best CAPA for slip in simple-yet-persistent oversight-review mechanism Nonconformance and Corrective Action 7
V Understanding Automotive Coating for Seating Mechanism Components Manufacturing and Related Processes 1
B Creating an Audit Mechanism (System/Plan) General Auditing Discussions 3
A Testing Process Audit - Defining a Process Compliance Mechanism Software Quality Assurance 2
V Driving Objectivity of Review Mechanism during Internal Audits ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 19
A Magnification for One Stage Dial Gauge Mechanism General Measurement Device and Calibration Topics 1
Chennaiite Automobile Differential Mechanism Explanation Video - Amazing Book, Video, Blog and Web Site Reviews and Recommendations 4
Marc Workings of Antikythera Mechanism Calculating Device Deciphered World News 0
Sidney Vianna Feedback mechanism on Whoisregistered.com - A database of registered companies ASQ, ANAB, UKAS, IAF, IRCA, Exemplar Global and Related Organizations 4
Marc Ancient Greek Computer Reconstructed - the Antikythera mechanism After Work and Weekend Discussion Topics 2
S NCR under MDD - No documented procedure for class I device registration mechanism ISO 13485:2016 - Medical Device Quality Management Systems 2
K ISO 2859-5 (single run production) control plan issues FMEA and Control Plans 2
E Control Charts ISO 17025 related Discussions 7
E Control of Sterile Barriers made by the supplier Design and Development of Products and Processes 4
E Do anyone have document of automotive production risk and control of risk? Lean in Manufacturing and Service Industries 1
M X-MR Control Chart Rules (Particularly the MR) Statistical Analysis Tools, Techniques and SPC 3
I Clinical study suppliers (service providers) -- extent of control ISO 13485:2016 - Medical Device Quality Management Systems 4
P Product Requirements Control during Design Changes Design and Development of Products and Processes 3
T Control Excel template Document Control Systems, Procedures, Forms and Templates 5
J Document Control of Online Management Software ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 10
R 8.7 Control of Nonconforming Outputs AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 2
W Document control Document Control Systems, Procedures, Forms and Templates 10
S Control plan - Multiple batches Manufacturing and Related Processes 2
Q Control Plan and the frequency of sampling FMEA and Control Plans 11
A ISO 9001:2015 8.5.6 and 7.5.3 Document Control Questions ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 5
qualprod Sheets into a spreadsheet document control ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 4
Rene Minassian Control of (TMME) Testing and Measurement Equipment Oil and Gas Industry Standards and Regulations 2
C Control Plan APQP and PPAP 7
D Control of Records ISO 13485:2016 - Medical Device Quality Management Systems 7
M Document Control - Applying Suitable Identification to Obsolete Documents ISO 13485:2016 - Medical Device Quality Management Systems 5
L Control of Documents ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 29
S Control plan for "highly automated processes" FMEA and Control Plans 3
D Document Control Question involving DocuSign US Food and Drug Administration (FDA) 6
R SCORING OF MILLER MARITAL LOCUS OF CONTROL SCALE Coffee Break and Water Cooler Discussions 2
M Document Control ISO and FDA ISO 13485:2016 - Medical Device Quality Management Systems 7
M Design Control Procedure Medical Device and FDA Regulations and Standards News 4
D 8.5.1.2 Validation and control of special processes requirements for Heat Treat External Processor AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 4
R Humane Pest Control Food Safety - ISO 22000, HACCP (21 CFR 120) 1
B 8.5.1.1 Control Plan - question audit NC IATF 16949 - Automotive Quality Systems Standard 5
B QM Plan vs Control Plan IATF 16949 - Automotive Quality Systems Standard 3
N AS 13004 Control Plan and AQL FMEA and Control Plans 1
R Does anyone use iQMS for their ISO based document control? Manufacturing and Related Processes 1
qualprod Traceability with no rules to control labels? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
B Doubt about the correct control chart Statistical Analysis Tools, Techniques and SPC 14
G Change Control for Test Samples Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
Z Change color or shape of individual data point in control chart Using Minitab Software 6
Z Setting the Control limits on Minitab Using Minitab Software 4
C Elaborating a control chart with skewed data Manufacturing and Related Processes 4
M Who is performing quality control? IATF 16949 - Automotive Quality Systems Standard 2

Similar threads

Top Bottom