Wednesday, July 8, 2020
Archives April 2017


April 2017


Rochester Gear Inc.

With new owners taking over the business in 2007 and implementing strategic changes such as new equipment investments and achieving ISO accreditation, Rochester Gear has the ability to meet customer needs for small- to medium-sized precision gears with shorter lead times while maintaining high quality standards.

When a fortuitous opportunity falls into your lap, you don’t want to let it slip by, especially when it means becoming the owner of a highly experienced, well-tuned gear job shop in Rochester, New York. That’s what happened to Rochester Gear’s president, Tony Fedor, who recalls a successful turn of events for a once-static gear […]
Molly J. Rogers

Understanding the Basic Principles of Power Skiving

General guidelines and simple mathematics, including ways to calculate spindle speeds, are presented to assist manufacturing engineers and decision-makers in determining if power skiving is a viable solution to manufacture a part.

The interest and successful application in power skiving is increasing within the gear manufacturing community as well as within companies that have access to modern five-axis machines but, thus far, have outsourced their gear manufacturing. The initial solution was developed and patented in 1910 in Germany [1]. Following a somewhat dormant period, a U.S. patent […]
Nicklas Bylund, Ph.D.

The Whirling Process in a Company that Produces Worm Gear Drives

Whirling is a fast method of producing worms: a toolholder ring, carrying a series of profiled carbide cutters, is set eccentric to the workpiece axis and rotates at a high speed. This paper describes the machining process and presents a case history with a comprehensive view of the time and cost benefits compared to a previous situation with standard machine tools. Geometric constraints in the worm shaft design due to the whirling process are also discussed.

The worm geometry of worm gearboxes, especially the thread profile and the shape of the thread flanks, depends on the machining method. The machined profiles are universally defined by the same criteria in several standards: ISO/TR 10828 [1], AGMA 6022-C93 [2], and DIN 3975 [3]. The most commonly used are: Straight-sided axial profile, usually produced […]
Dr. Giampaolo Giacomozzi, Dr. Massimiliano Turci

A Look at Expanding Mandrels for Gear Workholding

Expanding mandrels that hold gears between centers are used in the gear manufacturing process, most commonly in gear inspection, where high precision and range of expansion are key benefits.

In the gear manufacturing industry, the final inspection process is the last step before the gear is shipped to the end user. In order to achieve reliable inspection data, a highly accurate device is needed for holding the pinion or gear. For the process of inspecting pinion teeth, the pinion is typically mounted between centers […]
Timothy Zenoski


Designing High Contact-Ratio Gears

While there are many ways to design high contact-ratio gears, the following explains one design method that could be used.

High contact-ratio (HCR) gears are gears defined with a contact ratio greater than 2.0. Standard gears have a typical contact ratio of 1.2 to 1.6. In their most basic form, gears are designed to transmit power, and HCR gears perform especially well. They are stronger, quieter, and smoother, and they have significantly lower stresses. Also, […]
Rick Miller

Development of Residual Stresses During Machining and Workholding

Machining and fixturing prior to heat treatment are among the many potential sources for distortion and residual stress.

There has been much discussion on the development of residual stresses and distortion during heat treatment. There is an entire conference series called “Quenching and Distortion Engineering” held every five years that’s devoted to residual stresses developed during quenching and the control of residual stresses. The last event was in Chicago under the auspices of […]
D. Scott MacKenzie, Ph.D., FASM

Q&A with Casandra Blassingame

Director of Education
American Gear Manufacturers Association (AGMA)

Tell us about your role at AGMA. My role as AGMA’s director of education is to be responsive to the needs of our member companies by way of workforce education from basic to advanced levels. I achieve this through collaborative efforts with our instructors, industry professionals, member companies, board members, our engaged education committee, and […]
Gear Solutions Magazine

Steel Cleanness and Why Measurement Matters

Highly loaded components benefit from clean steels, but careful measurement — from steel processing to final quality — beyond conventional methods is required to achieve a high level of material performance.

In the past, cyclically loaded gearbox components often experienced fatigue failure caused by large oxide inclusions. Gradual improvements to the steelmaking process led to reduced concentrations of oxides and a corresponding shift in failure mode. As a result, common failures were more often due to component design and manufacture (e.g., surface finish). With the next […]
Dr. Peter C. Glaws


Toyoda Offers Gear Skiving Lunch ‘N’ Learn Series

With Toyoda’s GS300H and GS700H gear skiving centers that integrate multiple gear processes into one machine, the company is offering a series of two-hour gear-skiving seminars at Toyoda’s facilities: May 10 in Arlington Heights, Illinois; June 7 in New Brighton, Minnesota; June 21 in North Royalton, Ohio; July 12 in Shrewsbury, Massachusetts; and July 19 […]
May 4, 2017

MarCom Professional Metrology Software Available Free From Mahr

Mahr Federal offers its MarCom Professional metrology software version 5.2 as a free download from MarCom 5.2 is a full-featured metrology software interface that enables direct transfer of measured values into MS Excel, SPC software, or text file and can manage signals from up to 32 measuring instruments connected by wireless and 128 connected […]
May 4, 2017

Sandvik Coromant and PARC Partner to Advance Digital Manufacturing

Sandvik Coromant is strengthening its capabilities in digital manufacturing by signing a strategic research agreement with PARC, a Xerox company and world-renowned innovation center. PARC will provide Sandvik Coromant with a footprint in Silicon Valley and expert resources for research and development in the field of digital manufacturing. PARC will allocate resources to conduct research […]
May 4, 2017

Third Wave Systems Offers International Users Conference May 16-18 in Indianapolis

Space is filling up for the Third Wave Systems (TWS) International Users Conference at the Hyatt Regency in downtown Indianapolis. During the conference, TWS offers workshops, breakout sessions, and industry presentations to bring solutions for improving machining processes. The conference is open to users and non-users to learn how AdvantEdge and Production Module are being […]
May 4, 2017

Hwacheon Introduces High-Speed, High-Precision Hi-M G1 Vertical Machining Center for Graphite

Hwacheon Machinery America Inc.’s new Hi-M G1 vertical machining center is specially designed to cut graphite. Its quick and precise performance makes it an ideal choice for dry-cutting graphite electrode material used in die mold work. The rigid, yet compact structure with a design based on 3D/FEM analysis and wide LM guides for X/Y/Z axes […]
May 4, 2017

DMG Mori’s Chicago Innovation Days Is May 15-18

It’s not too late to register for Chicago Innovation Days, “Shape Your Future Production with Industry 4.0,” on May 15-18 from 9 am to 5 p.m. at DMG Mori in Chicago. Highlights include over 30 machines in action, including its 5-axis universal machining center, DMC 80 FDS DuoBlock with milling, turning, and grinding on the […]
April 28, 2017

Hofmann Products Now Available through Rotec Tools

With strong technical expertise and extensive knowledge in rotary table projects, Rotec Tools has announced that it has joined with Hofmann, a high-precision rotary table manufacturer in Germany. Hofmann is well-known in Europe for engineering and manufacturing high-quality rotary products and Rotec Tools will promote, support, and service the Hofmann product line in the U.S., […]
April 21, 2017

BWO Vector Control Enhances Koepfer CNC Hobbing Machines

The Vector control on all new Koepfer horizontal hobbing machines ushers in a new era of its user-friendly control concept: Optimized functionality using a minimum number of control elements Adjustable apps instead of a fixed menu structure 50-percent larger control interface with touch and swipe technology Sealed front panel design for easy cleaning USB interface […]
April 21, 2017

Turbomachinery Laboratory Call for Papers

The Turbomachinery Laboratory at Texas A&M University, host of the Asia Turbomachinery & Pump Symposium (ATPS) in Singapore, has officially opened the call for papers for ATPS 2018. Abstracts are due by June 4, 2017. Stationed in the fastest growing market for energy, oil and gas, and manufacturing, ATPS is the ideal training and networking […]
April 21, 2017

Mitutoyo America Announces Organizational Changes

As Shigeyuki Sasaki enters his 40th year with Mitutoyo Corporation, he will be joining the team in Germany to support Mitutoyo European operations. Sasaki has assumed an advisory role within Mitutoyo Europe. For the past 10 years, Sasaki has provided leadership as vice president, executive vice president, and most recently, as president. His guidance has […]
April 21, 2017

Mazak To Host Technology and Education Event for Midwest Shops

Mazak will host its annual Discover More With Mazak™ Event at its Midwest Technology Center in Schaumburg, Illinois, May 2-4. In addition to real-world part cutting demonstrations of its innovative machine tools, including Mazak’s HCN-5000/50 horizontal machining center, Quick Turn 250MSY, and Quick Turn Primos 100 turning centers, the company will conduct seminars and training […]
April 21, 2017

Rohm GmbH Names New Global Head of Sales and Marketing

Röhm GmbH, parent company of Röhm Products of America, appointed Damiano Casafina as the new head of sales and marketing worldwide, effective February 2017. As chief sales officer (CSO) and chief marketing officer (CMO), he also serves as a member of the company’s executive board. A seasoned professional with extensive technical know-how and market knowledge, […]
April 21, 2017

Kadia Further Refines LH Honing Spindles

Every micrometer counts when it comes to honing of high-precision components, such as those required for injection systems or hydraulic applications. In order to meet these high-quality requirements, the honing machines manufacturer Kadia Produktion GmbH + Co. in Nürtingen uses a direct drive technology for the spindles and the stroke. Meanwhile, the second generation of […]
April 21, 2017

PRODUCT SHOWCASE: United Tool Supply Releases Gear Inspection Model 2020

United Tool Supply, manufacturer of industry-leading Unite-A-Matic™ precision gauges, recently released a new Model 2020, which complements its existing product line with the ability to check internal splines within a range of 20 mm to 75 mm. This product meets a longtime need for the gear manufacturing industry. “We have had multiple customers mention to […]
April 21, 2017

PRODUCT SHOWCASE: Honing Machine from GMTA Optimizes Gear Finishing

Available from German Machine Tools of America (GMTA), the Präwema SynchroFine 205 HS gear honing machine features direct-driven, digitally controlled spindles for the tool and the workpiece, enabling precise, rigid synchronization. The Präwema honing gear finishing process produces quality comparable to grinding results for spur and helical gears, as well as shafts. The machine’s software […]
April 21, 2017

PRODUCT SHOWCASE: Dillon Full Grip Jaws Featured at PMTS

Dillon Manufacturing full grip jaws — available from 6 inches to 24 inches in diameter, with heights of 2, 4, and 6 inches, and metric sizes from 140 millimeters to 630 millimeters in diameter — completely grip workpieces and hold them firmly in place to maintain repetitive accuracy during high-speed machining operations. The full grip […]
April 21, 2017

PRODUCT SHOWCASE: Index Develops New Multi-Spindle CNC Machine

Index has developed a new generation of its successful multi-spindle automatic lathe series, this time with eight CNC spindles, two back-working spindles for rear-end machining, deploying up to 18 CNC slides (X and Z) and additional Y axes if required. The machine is ideal for high-volume precision work in the automotive, fastener, connector, and aerospace […]
April 21, 2017

PRODUCT SHOWCASE: Sinumerik Gives Performance Boost for CNC Hardware

For the high-end machine tool market, Siemens introduces version 4.7 of the Sinumerik Operate software, featuring new, more powerful CPUs and 15- and 19-inch “Blackline” panels in widescreen format for the Sinumerik 840D sl CNC. The new 7×0.3B PN processors are Profinet-compatible NCUs (numerical control units). The new processor technology, for example the NCU 730.3B […]
April 21, 2017

Schunk Opens Service and Technology Center in Texas

Schunk recently held an official grand opening of its new service and technology center in Houston, Texas. Manufacturers in Houston will benefit from having this new Tec-Center local to them, which offers: Factory-trained service technicians on-site with over 30 years experience in installing and servicing all brands of chucks. Troubleshooting, repair, and maintenance of workholding, […]
April 21, 2017

Kapp Technologies Announces Personnel Changes

Michael Ruppert has been promoted to vice president and general manager, and Bill Miller has been promoted to vice president of sales and service, effective April 1, 2017, after Jim Buschy retired March 31, 2017. Ruppert joined the Kapp Group in Germany in 2005 and moved to the operation in Boulder, Colorado, in 2007 to […]
April 21, 2017

Linamar Chooses RomaxDesigner for Its Design and Development of Driveline Systems

Linamar Corporation, one of the world’s leading diversified manufacturers of precision powertrain and driveline components, uses RomaxDesigner in its design and development processes, creating innovative transmission and driveline systems for a wide range of product lines. An innovative engineering approach from Romax is being applied to the development of new electric drive systems at Linamar. […]
April 21, 2017

ASME 2017 Power Transmission and Gearing Conference August 6-9

The Power Transmission and Gearing (PTG) Committee of the American Society of Mechanical Engineers, Design Engineering division, invites participants to the ASME 2017 Power Transmission and Gearing Conference. The conference is in conjunction with the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conferences (IDETC/CIE) in Cleveland, Ohio, on August 6-9, […]
April 21, 2017

SDP/SI Expands Machining Capacity with New Engineering and Manufacturing Facility

Stock Drive Products/Sterling Instrument (SDP/SI), a leader in comprehensive motion control and power transmission solutions, is operating in a brand-new world-class facility designed to greatly improve efficiencies and lead times. The 96,000-square-foot facility is located at 250 Duffy Avenue in Hicksville, New York, less than 10 miles from its former location of 45 years. “This […]
April 21, 2017