CRIBSHEET – #20 Accuracy VS Precision
April 2014 | Craftsman’s Cribsheet #20
Your quality assurance manager can put you to sleep explaining the difference between these two terms, but you really need to know the difference.
April 2014 | Craftsman’s Cribsheet #20
Your quality assurance manager can put you to sleep explaining the difference between these two terms, but you really need to know the difference.
PMPA Craftsman Cribsheet #119: Defeating the Hanging Cross-Hole Burr Deburring is a tedious task that is better left to machines. Published September 1, 2023 By David Wynn, Technical Services Manager, PMPA View Dave & Davey Video Download Magazine Article Anyone who has ever drilled a cross-hole knows about burrs. Especially when going through the wall…
PMPA Speaking of Precision Podcast: Starting A Quality System From Scratch Miles Free and Carli Kistler-Miller discuss how to start a quality system from scratch and how important our quality policies, procedures and processes are to our precision machining shops. Published February 13, 2023
February 2018 | Craftsman’s Cribsheet #63 There are three main kinds of wear, and these each have some common modes of occurrence. VIEW/DOWNLOAD
July 2019 | Craftsman’s Cribsheet #78 The straightness of cold finished steel bars, and all other barstock for our machines, is of critical importance. The controlling standard is ASTM A 108, Table A1.4. However, the standard errs in claiming the tolerances are measured by placing the bars on a level table and the depth of…
August 2021 Craftsman’s Cribsheet #99 Carbon may be the most important determinant of a steel’s properties. But without iron there is no steel. No humans, either. Iron is the decay product of Nickel 56 which is the last element produced by nuclear fusion as a star collapses. So, what else should be known about this…
PMPA Craftsman Cribsheet #135: ISO Material Groups: Stainless Steel Published January 1, 2025 By David Wynn, Technical Services Manager, PMPA Download/View Cribsheet The letter “M” is for all stainless steels in the ISO material group categories. Most manufacturers break it down into three subgroups. I have made it into five subgroups because of the…