Changes in dimensional sizes are a big concern for parts with tight tolerances. This complicated issue involves many variables. When heat treating is brought into the equation, the picture can become even blurrier.
In “Predicting Size Change from Heat Treatment,” authors Daniel Herring (Heat Treat Doctor from Henning Group Inc.) and Patrick McKenna (Vice President at Nevada Heat Treating Inc.) explain how a heat treater can help a shop prepare for final machining operations by providing a reasonable forecast of how certain variables will affect part size change.
Here is a list of heat treating variables that need to be considered:
Type of process selected (annealing, hardening, nitriding, carburizing, and so on)
High-heat process (anneal, normalize, austenitize), temperature and soak times
Low-heat process (age, temper, stress relief), temperature and soak times
OSHA just added and published a new chapter addressing noise to the OSHA Technical Manual. This chapter provides technical information and guidance to help compliance safety and health officers (CSHOs) evaluate noise hazards in the workplace.
The content is based on currently available research publications, OSHA standards and consensus standards. The chapter is divided into six main sections:
Introduction and background information about noise and noise regulations and an overview of noise controls.
Worksite noise evaluations, including noise measurement equipment, noise evaluation procedures and noise sampling.
Investigative guidelines (including methods for planning the investigation) and outlines a strategy for conducting noise evaluations.
Noise hazard abatement and control, including engineering and administrative controls, hearing protection, noise conservation programs, cost comparisons between noise hazard abatement options, and case studies.
References used to produce this chapter and resources for obtaining additional information.
Appendices provide a glossary of terms, sample calculations, and expanded discussion of certain topics introduced in the chapter.
We made links available to the OSHA Field Technical Manual PDF in March of 2012 at our blog here.
PMPA takes our responsibility to help our members intelligently manage the risks of regulation burden. How do you stay on top of all of the new regulations emerging from Washington D.C. regulators these days?
As manufacturing continues its desperate plight for qualified machinists, companies in the industry are taking steps to reach out to the public to educate them about careers in this field. One recent example is Adaptive Technology Solutions’ (ATS) Manufacturing Pays event held November 4 at the company’s Beavercreek, Ohio, location.
The company, a CAD/CAM/CAE and shopfloor monitoring solutions provider, held its free, week-long event that provided individuals with the opportunity to learn the basic skills needed for a career in manufacturing. The attendees were returning veterans, unemployed individuals, or individuals looking to improve upon their current employment situation with a job in manufacturing.
With more than 50 individuals signed up for the event, ATS sees this as a great opportunity to continue helping those who desire a career in manufacturing by offering this type of event in the Cincinnati and/or Columbus area in early 2014. In addition, ATS has decided to add a Level 2 course for those that completed the initial course. The second course will be a 2- or 3-day class where attendees will learn how to operate a CNC machine.
Although each attendee had their own reason for taking advantage of this free training, they all seemed to have the same thought process as Stephen Cullum, saying, “This free training program gave me the opportunity to gain additional knowledge, while expanding on what I already know, helping me secure a local manufacturing job.”
Many of the attendees found this training program to be extremely beneficial while hopefully using their Technical Learning Certificate to a successful career in manufacturing.
“I really enjoyed the hands-on training with industry software,” says Jeffery Wing, attendee. I am confident this training will help me with my long-term goal of obtaining a job in manufacturing,”
Now that the advantages of cheap labor and shipping are slipping away from China, the country is in a desperate situation, according to a recent article in Forbes. Cash flow problems are holding the Chinese back from changing their entire business model that is based on cheap labor, and companies are finding it easier to shift blame rather than restructure and deal with the real issues.
But that won’t make the road back an easy one and should contribute to the continued re-shoring effort here in the U.S. Author Mark McKay draws a tight parallel between today’s Chinese manufacturers and many of those in the U.S. in the 1980s, and it’s not a positive outlook for the companies that fit the mold. Now seems to be a good time to reinforce the quality of American manufacturing.
There is no reason that the vast majority of new manufacturing jobs have gone to men, but they have. Why has women’s representation in manufacturing dropped for two decades?
PMPA President Darlene Miller testified before the Senate Joint Economic Committee recently on the topic of Women in Manufacturing. As a shop owner, STEP Women in Manufacturing honoree, and member of the president’s Job Council, Darlene has some real-world insight into the issue.
Here are her four steps to encourage women to seek manufacturing careers:
1. It is absolutely essential that businesses engage with local community colleges to ensure relevant skills sets are being taught.
2. Equipment needs to be current, not old and outdated. We have high-tech $400,000-$500,000 equipment per machine.
3. We really need really excellent math and problem solving skills; we need to tell the schools what those are.
4. We need to get into middle schools to engage female students at a younger age in potential careers.