THE SEVEN MOST FREQUENT ERRORS
2018-11-05 - ... in statistical process control
|privacylayer||Status Agreement Cookie hint||1 year|
|_ga||Google Analytics||2 years|
|_gid||Google Analytics||1 day|
|_gat||Google Analytics||1 minute|
|_gali||Google Analytics||30 seconds|
04 May 2016: Hexagon Manufacturing Intelligence
Statistical process control is an increasingly widespread method of improving manufacturing visibility, and to provide a beginner’s guide to the technique, Tom Stewart, President of the North American subsidiary of Q-DAS, recorded a podcast interview. Hexagon Manufacturing Intelligence's Accelerate! magazine catches up with the conversation in this HxGN Radio Recap.
Statistical process control is the matter of collecting data during the manufacturing process and determining whether the process is stable, in control, and trying to determine the probability that parts will be in spec or out of spec.
Well, in many cases the traditional methods of statistical process control, which were originally derived in the 50s, 60s and 70s are simply not applicable today. So in a given plant, while they’re making production parts they have to be concerned about tool wear, and tool life, and targeting a process, and so many process parameters.
In those days the production process was more or less linear. For example, in the automotive industry, it’s transfer line based, where a piece part would be processed in one operation and then sequentially go to the next and the next. So in those days, they were taking the piece parts off of the production line in the order they were manufactured and measuring them in the order they were manufactured. And in that case they could develop a subgrouping of the data and something called the Western Electric Rules: runs, trends, middle thirds, were more applicable than they are today.
2018-05-02 - SPC is a central tool in industrial quality assurance, but what is behind it?
2018-04-04 - QCCs are crucial in statistical process control. They help you decide on any measures you have to take..
2017-02-28 - Evaluation and strategy are the magic word in qs-STAT, solara.MP, destra and all CAMERA products.
2015-07-10 - How to meet the demand of a comprehensive solution
2014-03-31 - What are the benefits of combining CAQ/SPC and MES
2013-11-18 - Statistics is not a land of milk and honey, but most people find what they are looking for.
2012-03-26 - An overview of changes in the application of statistical procedures
2011-10-17 - Why Shewhart control charts are particularly affected by these risks