Lean Efforts Capture the Shingo November 1, 2007 A subsidiary of HNI Corp. (Mustacine, IA), the second-largest manufacturer of office furniture in North America, Hearth & Home Technologies (HHT; Mt. Pleasant, IA) manufactures sheetmetal fireplaces (both wood and gas-burning), vent pipe, and fireplace accessories. The company has four manufacturing facilities.
Advanced Technologies Supplement: Processes Reduce Composite Costs April 1, 2007 Composites engineers are expanding their craft to build more complex, durable parts at higher production volumes. One way they are achieving this objective is by using infusion-molding processes based on Resin Transfer Molding (RTM) and Vacuum Assisted Resin Transfer Molding (VARTM).
Automation in Lean Manufacturing July 1, 2007 Common misperceptions about lean manufacturing and automation systems lead many manufacturing managers to dismiss the use of automation in a lean setting.
Metal Cutting: Cells and Machining Centers August 1, 2006 There will be more than one new machine introduced at IMTS 2006 that will be billed as a China beater, or as an India and rest-of-Asia beater, for that matter.
Tooling and Workholding August 1, 2006 Overall, there are two overriding customer needs: reducing cycle time and machine downtime. They want higher feed rates and depth of cut for greater metal removal.
The Powerful Potential of Peel Grinding February 1, 2006 Why consider peel grinding? Among the reasons: high precision; ability to make complex, small features; works well on hard materials conventional machining can’t handle; and the falling cost of CBN.
Minimizing Tool Breakage Cost March 1, 2006 When a tool breaks during a machining operation, the part being processed is often destroyed, and sometimes the machine is damaged. Aerospace parts are often complex shapes, manufactured from exotic materials that require prolonged machining cycle times. Therefore, a scrapped part is a significant loss in raw materials and value-added machining.
Lean at NUMMI September 1, 2005 To remain competitive in the fiercely contested North American automotive industry, the New United Motor Manufacturing Inc. (NUMMI, Fremont, CA) assembly plant, a joint venture between Toyota Motor Corp. (Aichi Prefecture, Japan) and General Motors Corp. (Detroit), has rededicated its efforts in lean manufacturing during the past few years by applying key tenets of the Toyota Production System (TPS).
Waterjet vs. EDM October 1, 2005 A wave of skepticism swept through me when I received the assignment to write this story. Why would anyone compare wire electrical discharge machines (EDMs) to abrasive-waterjet cutting? After all, they are different technologies suited for different kinds of work.
Micromanufacturing is Growing July 1, 2004 Many industries have been making parts with micron dimensions for some time, but in the last few years, the market for miniaturization has expanded. The demand is not only for small parts, but also for small complex features on larger parts. This is due chiefly to the switch to modules in which the functions of several parts or subsystems are not handled by a single complex unit.
