Parts such as ballscrew nuts not only require external thread whirling, but intricate internal threading as well. Internal helical threads on hardened parts are typically produced through multiple high speed grinding passes. As the length of the thread and/or thread helix angle increases, so does the difficulty in maintaining process stability and thread accuracy when grinding these internal profiles.
There’s a machine, however, that has an inverted vertical chucking design with a special oscillating tooling system that engages the part from below, offering an alternative to grinding internal helical threads. Because the Leistritz Innovation 200 internal whirling machine from Leistritz Corp. provides inverted vertical chucking, it serves as its own part loading system.
During internal whirling, both the workpiece and single-point whirling tool rotate in the same C-axis direction. Machining is performed without coolant, and only one cutting pass is required to produce a finished internal thread.
Starting on Thursday August 8, 2024, PM will begin “gating” its premium content, asking all new website users to provide some information about themselves — name, title, employer, email address — before they are provided free access to the content.
We are doing this because the ways PM’s audience finds and accesses our content is changing. Google’s search algorithms, increasingly, make it difficult to connect PM’s content with the people who might make use of it. On top of that, generative AI like ChatGPT is serving up PM content to internet users without attributing that content to PM.
As a result, it has become increasingly important for PM evolve its audience development strategy and learn as much as possible about who is accessing our content, what content they are accessing and how they are accessing it.
With this audience development strategy, we hope to do two things:
First, we will be better able to deliver directly to our audience the editorial content that aligns with the machining materials, processes and technologies that interest them.
Second, we will be better able to connect the materials, equipment and services our advertisers supply with the audience that is most interested in them.
PM plays a distinctive role and has earned a place of esteem within the focused and specialized industry it serves. Large developments in the media landscape are forcing us to change the way we communicate with our audience. We are confident that our audience values the role PM plays in their professional lives and will join us in this effort to stay connected to them.
We thank you for your continued interest in and support of PM and welcome any questions you might have about the brand’s new content gating strategy.
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