MMS Blog

In the last post on the topic, we discussed coordinate measuring machines (CMMs) in context: how far they have come technologically, and where they are headed. Now, let’s take a look at a couple factors that make these systems so complex as well as capable: calibration standards and probe uses.

Producing measurement data about a part to verify its accuracy and validate the integrity of its manufacturing process is a prime function of the CMM. However, to meet this function as well as to satisfy traceability requirements, CMMs must be properly calibrated periodically at a frequency set by the user. The two most common standards by which most CMMs are calibrated are ASME B89.4.1 and ISO 10360-2. The two standards are very similar.

Learning about the surface finishing industry can help your shop deal with increasing customer demands and provide operations beyond your shop’s traditional comfort zone. One opportunity to learn more about the surface finishing industry is to attend the National Association for Surface Finishing’s SUR/FIN Manufacturing and Technology Trade Show and Conference, which will take place June 3-5 at the Donald E. Stephens Convention Center in Rosemont, Illinois.

Right now, SUR/FIN is accepting proposals to present papers at the 2019 conference. The NASF’s Technology Advisory Committee (TAC) is seeking speakers with surface finishing experiences or a focus on new technology to give exclusive, informative, non-commercial presentations for the SUR/FIN technical program. Each 30-minute presentation should cover the latest surface engineering and finishing technology topics that are seen impacting business today or trending for tomorrow.

A new tool offers a fundamentally different method for forming internal threads in aluminum and other lightweight alloys. Emuge Corp. developed the Punch Tap in conjunction with Audi, which held exclusive rights to its use in the automotive industry until its wide-market debut at the International Manufacturing Technology Show (IMTS) 2018. While other threading techniques slowly enter and exit the hole to avoid damaging the threads, the Punch Tap is designed for quickly plunging into the material to thread depth, cold-forming the threads with a single twist and exiting—all in a fraction of the time it takes to using a traditional tap, cold-forming tap or a thread mill. Thanks to its atypical geometry, it can move quickly without damaging the threads it forms.

The tool has two helical rows of flutes with thread-forming teeth, offset 180 degrees from each other, traveling down the length of the tool. Two pilot edges, one at the tip of each flute, create two helical clearance grooves for the flutes to follow. These grooves ensure the thread-forming teeth do not touch the interior wall as the tool rotates clockwise into the hole. Once the tool reaches full depth, it stops, then rotates 180 degrees counterclockwise. Only then do the teeth contact the hole wall to cold-form all of the threads. After the 180-degree rotation, the rows of flutes are aligned with the clearance grooves opposite of those they followed plunging into the hole. The tool continues a counterclockwise rotation as it exits the hole to keep the flutes inside the helical clearance grooves. After the Punch Tap exits the hole, the clearance grooves remain, but are said to have a negligible effect on thread function. (The process is demonstrated in this video.

Sponsored Content 16. November 2018

Get More Out of Your Machining with This Cutting Strategy

The key to more productive machining is using milling and turning tools in the ways they were intended, at optimum feeds and speeds and, most importantly, optimum chip loads.

For conventional machining, tool manufacturers typically recommend cutting parameters assuming a stepover of 50 percent of the tool diameter. Feeds and speeds are adjusted accordingly to deliver an ideal chip load. The alternative is using radial chip thinning (RCT), known more broadly as constant-chip-load machining or high-efficiency machining.

By: Emily Probst 15. November 2018

Women Transform IMTS

One such opportunity is to help drive the digital transformation—to provide value for manufacturing companies by making data-driven business decisions. For example, the organization Women in Big Data presented the Digital Transformation Conference during IMTS to help both male and female attendees understand the value of data to make better decisions on the shop floor. The inaugural event’s panel consisted of Nina Anderson, data scientist for AMT–The Association For Manufacturing Technology; Kim Cato, IT director for Whirlpool Corp. NAR Integrated Supply Chain and Manufacturing; Ester Codina, managing director - Sandvik Coromant; Stephanie Hendrixson, senior editor of Additive Manufacturing magazine; and Elisabeth Smith, president and CEO of Acutec Precision Machining Inc.

The panelists shared their industry expertise on data analytics, digital integration and the technologies driving this transformation. Here are six key takeaways:

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