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(SPONSORED CONTENT)Carburizing Gears in Vacuum
Solar Atmospheres provides low pressure vacuum carburizing (LPVC) that significantly increases the surface hardness/strength of steel parts for improved friction and wear. Performing LPVC in a vacuum furnace eliminates oxygen and prevents IGO (intergranular oxidation) that is inherent in atmospheric carburizing, resulting in clean parts with less distortion reducing post process finishing operations, and costs. Article Courtesy of Solar Atmospheres
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Google â€ślean manufacturingâ€ť and you will find a virtually endless font of information regarding formal lean implementation. Youâ€™ll see definitions for Japanese words such as kaizen, gemba, muda, mura, kanban, and so on. You will also find other variations or iterations of lean, e.g.: Six Sigma, Lean Sigma, TPS (Toyota Production System), TOC (Theory of Constraints), JIT (Just in Time), and others.
Make no mistake -- lean manufacturing is here to stay. And no wonder. As a fiercely competitive global economy continues to alter companiesâ€™ â€śMain Streetâ€ť thinking, that relatively new dynamic is spurring the need for â€śI-need-it-yesterdayâ€ť production output. And for increasingly more industries -- big or small -- that means getting as lean as you can, as fast as you can.
Most readers are at least familiar with continuous improvement programs such as lean and six sigma. Perhaps your shop or company is well along in the implementation of one or the otherâ€”if not both. But what about theory of constraints (TOC), introduced in Dr. Eliyahu Goldrattâ€™s 1984 book, The Goal? Despite its rather negative-sounding name, this continuous improvement process has much to offer manufacturers of all stripes. And when combined with lean and six sigma, the results can be dramatic. Dr. Lisa Lang, a TOC consultant and speaker, explains why and how in the following Q&A session with Gear Technology.
Job shops may be ill-advised to undertake a complete reorganization into FLEAN (Flexible and Lean) cells. A FLEAN cell would (i) be flex-ible enough to produce any and all orders for parts that belong in a specific part family and (ii) utilize lean to the maximum extent possible to eliminate waste.
The shipping department is the closest to the customer, and its main objective is to maximize shipped orders every month. Our lean guru shows how to eliminate waste in the shipping department.
While universally known as a Japanese â€śinventionâ€ť that was popularized by Toyota, lean in fact traces its roots to the work of post-World War II American occupation forces in Japan.
This is the first article in an eight-part "reality" series on implementing continuous improvement at Hoerbiger Corporation. Throughout 2013, Dr. Shahrukh Irani will report on his progress applying the job shop lean strategies he developed during his time at Ohio State University.
In the August issue, we examined the lean tools that will and will not work in high-mix, low-volume manufacturing facilities. Now, we will examine how to implement the tools that will work in the job shop with an approach that expands the capabilities of value stream mapping.
Why traditional lean manufacturing approaches need to be adapted for job shop environments.
The final installment of our Job Shop Lean series includes a wide variety of educational resources to help you continue your own lean journey.
A look at some of the software options available to help with lean scheduling in a job shop
Two high-volume gear production cells grace the shop floor at Delta Research Corporation in Livonia, Michigan. Thanks to lean manufacturing, these cells have never shipped a defective part to a customer since they were developed over three years ago.
The presidents of two manufacturing companies were having a drink in the lobby before the start of their trade association's annual meeting...
POLCA: An alternative to Kanban for high-variety or custom-engineered products.
A look at three gear industry companies at varying stages in the journey.
The Tiger Team from Hoerbiger looks for ways to cut waste and improve throughput in the company's assembly cell.
Although a cell is dedicated to produce a single part family, it must have the requisite equipment capabilities, routing flexibility, cross-trained employees and, to the extent possible, minimal external process dependencies. Cells are often implemented in job shops since they provide the operational benefits of flowline production.
Gear designers face constant pressure to increase power density in their drivetrains. In the automotive industry, for example, typical engine torque has increased significantly over the last several decades. Meanwhile, the demands for greater fuel efficiency mean designers must accommodate these increased loads in a smaller, more lightweight package than ever before. In addition, electric and hybrid vehicles will feature fewer gears, with fewer transmission speeds, running at higher rpms, meaning the gears in those systems will have to endure life cycles far beyond what is typical with internal combustion engines.
Not long ago, many manufacturing managers thought sensitivity to environmental protection standards meant additional expenses, decreased productivity, and a plethora of headaches and hassles.
How lean manufacturing principles can help transform your gear manufacturing business.
It is becoming increasingly apparent that material properties can and will play a greater role than before in addressing the challenges most transmission manufacturers are facing today. Making use of materials' intrinsic fatigue properties provides a new design tool to support the market changes taking place.
Over the past few months I've talked with several different gear manufacturers who are in the process of upgrading their gear making equipment with modern CNC machine tools. Each of these manufacturers has come to the realization that in order to stay competitive, he needs to streamline operations and become more efficient...
News about the latest products in the industry.
Readers respond to our "Job Shop Lean" column and the "My Gear is Bigger than Your Gear" article.
When the term, â€śwhat you see is what you getâ€ť is applied in the computer industry, it means that users or customers are able to see their end results without the encumbrances of complicated software code that enables this function. Software works behind the scenes ultimately to produce transparency and the desired effects. In many ways, this concept should be extended to the relationships that exist between suppliers and buyers and even among internal company departments.
For many in the gear and gear products business, these may seem like the best of times...
The gear companies enjoying the most success in today’s global market are those that firmly believe quality is much more than expert craftsmanship and foolproof inspection methodologies.
The complete Industry News section from the January/February 2013 issue of Gear Technology.
an advancing technology and higher energy costs appear to be leading heat-treating companies in the gear industry toward cleaner, more energy-efficient processes. These processes may offer some relief to heat treaters through cooler factories and some relief to their companies through reduced energy usage.
The data discussed in this article was taken from an upright vacuum cleaner. This was a prototype cleaner that was self-propelled by a geared transmission. It was the first time that the manufacturer had used a geared transmission in this application.
We talked energy efficiency with some major players in the lubricants industryâ€” but with a focus on their productsâ€™ impact regarding energy efficiency of gears and gearboxes in wind turbines.
Design and manufacture of gears is among the most complex and difficult disciplines of the industrial arts. From initial conception to machining and finishing, making gears ain't bean-bag. And guess what? Once those gears roll off the assembly line, it doesn't get any simpler. That's because gears - the metal ones at least - require the correct lubrication in order to prevent - or delay as long as possible - such things as wear, scuffing and Hertzian fatigue.
Safe cutting tool clamping, superfinishing gear shafts, gearbox parts cleaning, gear deburring and more new gear-related products.
Contact fatigue and bending fatigue are two main failure modes of steel gears, while surface pitting and spalling are two common contact fatigue failures -- caused by alternating subsurface shear stresses from the contact load between two gear mates. And when a gear is in service under cyclic load, concentrated bending stresses exist at the root fillet -- the main driver of bending fatigue failures. Induction hardening is becoming an increasingly popular response to these problems, due to its process consistency, reduced energy consumption, clean environment and improved product quality -- but not without issues of its own (irregular residual stresses and bending fatigue). Thus a new approach is proposed here that flexibly controls the magnitude of residual stress in the regions of root fillet and tooth flank by pre-heating prior to induction hardening. Using an external spur gear made of AISI 4340 as an example, this new concept/process is demonstrated using finite element modeling and DANTE commercial software.
What gear material is suitable for high-temperature (350 â€“ 550 degree C), high-vacuum, clean-environment use?
If you enjoy working with your handsâ€”without doubt a large segment of Gear Technologyâ€™s audienceâ€”you must go to robives.com. There you will find one of the most clean-but-serious fun websites on the Internet. It is where you will learnâ€”or re-learn, in some casesâ€”how to create things from paper. Origami, youâ€™re thinking? Nahâ€”mere childâ€™s play.
Gear Expo 99, AGMA's biennial showcase for the gear industry, has left the Rust Belt this year and landed in Music City U.S.A., Nashville, Tennessee. The event, with exhibitors from around the globe showing off the latest in gear manufacturing as well as metal working processes, will be held at the Nashville Convention Center, October 24-27, 1999. According to Kurt Medert, AGMA vice president and Gear Expo show manager, "In choosing Nashville, AGMA;s Trade Show Advisory Council found a city that is an excellent trade show site. It has the right mix of convention center, nearby hotels, and a clean downtown area with entertainment readily available for the exhibitors and visitors alike. Nashville is in the heart of southern industry, which we see as a focus of growth for the gear industry and its customers."
New innovations in the management of hear treating parts washers and yielding powerful, unexpected benefits. Simply, cost effective shop floor practices are being combined in new ways to deliver big quality improvements and significant help to the bottom line. Employing these steps early in the process can dramatically cut waste hauling expenses and greatly reduce environmental liabilities while continuously producing cleaner parts.
It is very common for those working in the gear manufacturing industry to have only a limited understanding of the fundamental principals of involute helicoid gear metrology, the tendency being to leave the topic to specialists in the gear lab. It is well known that quiet, reliable gears can only be made using the information gleaned from proper gear metrology.
The turbines are still spinning. Theyâ€™re spinning on large wind farms in the Great Plains, offshore in the Atlantic and even underwater where strong tidal currents offer new energy solutions. These turbines spin regularly while politicians and policy makersâ€” tied up in discussions on tax incentives, economic recovery and a lot of finger pointingâ€”sit idle. Much like the auto and aerospace industries of years past, renewable energy is coping with its own set of growing pains. Analysts still feel confident that clean energy will play a significant role in the future of manufacturingâ€”itâ€™s just not going to play the role envisioned four to five years ago.
Indianapolis is a nice city. No. It's a great city for a convention. The facilities and the city are modern, clean and bright. The Convention Center is easy to get to by either car or plane, and its central location in the heart of town and the enclosed skyway system between it and major hotels put visitors close to amenities like restaurants, shopping and entertainment. The people are friendly and go out of their way to make visitors feel welcome.
Heat Treating - The evil twin of the gear processing family. Heat treating and post-heat treating corrective processes can run up to 50% or more of the total gear manufacturing cost, so it's easy to see why, in these days when "lean and mean" production is the rage, and every part of the manufacturing process is under intense scrutiny, some of the harshest light falls on heat treating.
Gear Expo '93 - another trade show, another plea to send people and/or equipment out of town, away from the office or plant. Another bid to spend time, money, and effort. Oh, please! Hasn't anybody heard that these are the "lean and mean" '90s?
September 27-29. American Society for Metals 11th Annual Heat Treating Conference October 10-12. AGMA Fall Technical Meeting. Fairmont Hotel, New Orleans, LA November 1-3. SME Gear Processing and Manufacturing Clinic, Sheraton Meridian, Indianapolis, IN
U.S. Shot Peening and Blast Cleaning Workshop.
The United Statesâ€™ long-held dream of energy independenceâ€”as in cheap, clean, free of overseas extortion and renewable energyâ€”could very well be realized in part by the country-wide development of wind turbines...
Iâ€™ve had the great fortune to visit many countries and experience their cultures, and I often tell stories based on those experiences. But when I begin to tell people about my most recent tripâ€”to Cubaâ€”their eyes light up, their attention sharpens and they lean forward with great interest and curiosity.
As gear manufacturing techniques become more precise and demanding, there is a growing demand for cleaner, higher quality steel.
News Items About lean
1 Cleaning Technologies Group Releases Planning for New Cleaning Equipment Guide for Free (January 2, 2018)
Cleaning Technologies Group is excited to announce the release of their new guide, "Planning for New Cleaning Equipment." The a... Read News
2 Dürr Ecoclean EcoCDuty Cleaning System Built to Process Large Loads (March 15, 2016)
Dürr Ecoclean has developed a solvent-based cleaning system, the large-chamber EcoCDuty, for heat-treating contractors, metalforming... Read News
3 Clean Technologies Group to Exhibit at IMTEX (December 18, 2012)
Cleaning Technologies Group will introduce a host of advanced cleaning solutions at the Indian Machine Tool Exhibition (IMTEX) in Bangalo... Read News
4 Cleaning Technologies Introduces CleanVeyor System (May 7, 2013)
CleanVeyor Ultrasonic parts washer utilizes a combination of spray, immersion, and ultrasonic cleaning technologies and has proven succes... Read News
5 Dürr Ecoclean Offers Solvent Performance (February 4, 2013)
In many industrial cleaning applications the use of solvents yields valuable process advantages. Dürr Ecoclean keeps refining and im... Read News
6 Blackstone-NEY Ultrasonics PROHT Ultrasonic Cleaning Tanks Designed for Small Scale Production Cleaning (February 28, 2017)
Blackstone-NEY Ultrasonics, a division of Cleaning Technologies Group LLC, introduces its popular PROHT ultrasonic cleaning tanks with ne... Read News
7 BvL Oberflächentechnik Cleaning Systems Designed to Meet High Cleanliness Demands (April 24, 2017)
The absolute necessity for clean components in the automotive industry requires reliable cleaning technologies. With longstanding experie... Read News
8 Ransohoff LeanDrum CF Washer Offers Energy Efficient High-Volume Cold Forming Solution (June 28, 2017)
Ransohoff, a division of Cleaning Technologies Group LLC, has introduced its LeanDrum CF Washer. This new platform provides an energy eff... Read News
9 ASQ Joins Forces for Single Lean Certification Standard (April 6, 2010)
With the goal of moving toward a single standard for lean manufacturing certification and workforce development, the American Society for... Read News
10 PICO Chemical's New Solvent Replaces Hazardous Materials for Gear Cleaning (August 8, 2007)
hemical Corp released its Pico Solv NPB as a new technology chlorine-free solvent cleaner that is manufactured specifically o replace haz... Read News
11 Ransohoff Introduces the New Generation Lean-Jet RB-FLEX Parts Washer (December 2, 2014)
Ransohoff, a division of Cleaning Technologies Group LLC, recently introduced its new generation Lean-Jet RB-FLEX immersion cle... Read News
12 Schunk Introduces EGS Cleanroom Gripper (December 1, 2014)
The EGS from Schunk is designed for the gripping of small to medium sized workpieces, with flexible force and high-speed in clean environ... Read News
13 Walter Surface Technologies Launches CleanBox Flow (January 7, 2014)
Walter Surface Technologies has announced the launch of CleanBox Flow, the newest addition to the family of Bio-Circle manual industrial ... Read News
14 Industrial Conference to Focus on Job Shop Lean (January 2, 2014)
"Making the Lean and Flexible Factory a Reality," is a lean conference that takes place February 6, 2014 at the Lone Star Corpo... Read News
15 Ultrasonic Tanks Aim to Clean-Up Industrial Manufacturing (December 7, 2007)
Ultrasonic tanks by Omegasonics assist in the process of toxic parts cleaning in all industrial machining applications. According to the ... Read News
16 Cleaning Technologies Names Buse CFO (January 16, 2013)
Cleaning Technologies Group, LLC announced that Helene M. Buse has been named chief financial officer effective January 1, 2013. Buse wil... Read News
17 Degreasing Deburring and Cleaning Products Presented at German Exhibition (September 12, 2011)
Roughly 240 exhibitors will be represented when the 9th parts2clean opens its doors at the Stuttgart Exhibition Center on the 25th of Oct... Read News
18 RSC Bio Solutions Offers Non-Hazardous Cleaning Options (May 27, 2011)
RSC Bio Solutions recently announced its new Gunk Powered by SafeCare and Liquid Wrench Powered by EnviroLogic industrial cleaners, degre... Read News
19 Great Lakes Industry Awarded Michigan Clean Energy Grant (June 29, 2010)
A $2.5 million Clean Energy Advanced Manufacturing (CEAM) award was granted to Great Lakes Industry Gear LLC, a subsidiary of Jackson, MI... Read News
20 SafeTap Plus Provides Safe and Clean Working Environment (February 13, 2008)
ITW Rocol recently unveiled a new water-based tapping fluid with a custom blend of synthetic additives that provide cooling properties wi... Read News
21 Vomat Filter Coolants Maintain 100 Percent Separation Between Dirty and Clean Oil (November 8, 2016)
In modern metalworking, the filtration of cooling lubricants has become an important profitability success factor. In the tool grinding p... Read News
22 VAC-U-MAX Industrial Vacuum Cleaning System Extracts Fluid and Solids (February 18, 2008)
Powered by compressed air, the VAC-U-MAX 55MW filters liquids and removes metal chips from coolant in order to increase coolant life and ... Read News
23 Junker Offers Lean Selection Speed at IMTS 2012 (July 27, 2012)
Junker's Lean Selection allround offers custom-tailored power and precision and is especially prized for being user-friendly and cost... Read News
24 Vomat Filtration Systems Provide 100 Percent Separation of Clean and Dirty Grinding Oil (December 20, 2017)
To manufacture precision tools, tool manufacturers must optimally coordinate all parameters involved in the process such as edge preparat... Read News
25 Oelheld Introduces AirForge 4027 Clean Lubrication (April 29, 2015)
Oelheld U.S. recently introduced AirForge 4027, a newly developed protective lubricant for hot forging of steel and alloys. It'... Read News
26 Makuta Completes Second Clean Room (July 26, 2007)