April 2021
Craftsman’s Cribsheet #95
Most defects in steel workpieces encountered in our precision machine shops are longitudinal in nature. This means that they go lengthwise with the bar, not transversely across the bar.
PMPA Speaking of Precision Podcast: Identifying ISO Workpiece Material Groups – Steel Edition Miles Free, Carli Kistler-Miller, and David Wynn discuss why it is important to understand ISO material groups to get proper match of tool and workpiece material. Published December 16, 2024
March 2013 | Craftsman’s Cribsheet #7 Straightness is critical for holding position and tolerances on today’s highly engineered medical, aerospace, automotive and electronic parts. Here are six ways that bars can lose their straightness. VIEW/DOWNLOAD
A Closer Look at a Rubber ASTM Specification Chuck Farlow from North Coast Seal Attendees will get introduced to rubber callouts (which are often identified on prints for parts that they need to assemble) within the ASTM classification and basic material properties from North Coast Seals Sales Engineer, Chuck Farlow. VIEW/DOWNLOAD
February 2021 Craftsman’s Cribsheet #103 Computer numerical control (CNC) machining is one of the most versatile manufacturing methods, capable of producing parts and components with dimensional accuracy and complex geometries in varying quantities from a wide range of metallic and nonmetallic materials. VIEW/DOWNLOAD
When heated below the lower critical temperature, steels will develop a temper color. This chart shows the temper colors obtained in a 0.95% carbon content steel at various temperatures.
September 2013 | Craftsman’s Cribsheet #13 Employees do not work with a copy of a work instruction in hand. So why do we have them? Here are ideas on how to get the most value out of these documents. VIEW/DOWNLOAD