Photo courtesy Erwin Junker Machinery


GRINDING


Junker’s Lean Selection speed is an extremely effi cient high-speed grinding machine, perfect for grinding small and medium-sized production series in single or multiple-shift operation with CBN and/or diamond wheels. When grinding shaft-type parts, including blanks for cutting tools, the Lean Selection speed is a cost-effi cient and fl exible solution with peripheral speed up to 140 m/s.


Machine Designs Win New Grinding Applications


Precision parts cover wide aerospace, automotive, medical, and tool grinding applications


Jim Lorincz Senior Editor


I


n what shouldn’t be too much of a surprise, challenges for advanced grinding technology from high tech industries range from handling the most diffi cult-to-machine materi- als for aerospace jet engine turbines to series production on automotive drive train lines. “Common high-value aerospace en- gine parts are those located directly after the combustion phase area in the turbine hot section. These parts are typically made from superalloys with chemistry make-ups of nickel, cobalt and chromium as well as a variety of other diffi cult-to-machine materi- als,” said Larry Marchand, vice president-profi le group, United Grinding North America Inc. (Miamisburg, OH). For such high-value components, United Grinding technol- ogy ranges from three-axis creep feed grinding machines and four-axis continuous dress creep feed systems up to six-axis machines with tool changing capabilities for grinding complicat- ed radial shapes. Also, these highly advanced solutions typically


December 2016 | AdvancedManufacturing.org 37


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