Direct metal deposition (DMD) is a rapid prototyping method to produce metal parts by spraying metal powder through a coaxial nozzle to a CO laser beam to form a thin molten pool on a target.
DMD™ is a revolutionary additive metal process that fabricates fully
dense, highly accurate molds and dies … in record level lead times.
DMD is a laser-based fabrication technology that produces 100%
dense metal products “from the ground up” using powdered metal.
The first major advance in metalworking in decades, DMD produces
tooling with superior material properties … in less time … and at a
lower cost than is possible with traditional fabrication technologies.
DMD Manufacturing
DMD is an enabling technology to increase productivity in the molding, die casting, hydro-forming, forging and stamping industries. Due to its additive nature, DMD creates a new paradigm for the fabrication of tooling. DMD is applied in a variety of ways to overcome the limitations of existing subtractive metal fabrication technologies, namely:
Productivity - The performance of a tool can be significantly improved by the use of highly heat-conductive alloys below the tool surface, or by constructing cooling channels that conform to the tool surface. DMD can be used to build a hard, tool steel surface over a highly, heat-conductive core, and to construct conformal cooling channels. We call this Advanced Thermal Management, or ATM. When applied to tooling and mold components, ATM reduces cycle time without sacrificing tool life, leading to increased productivity.
Time To Market - The long lead-time (3-4 months) to build conventional tooling is a gating issue for new product introductions. In many cases, prototype and production tooling are created in sequence, resulting in lead times nearing six months. DMD reduces time to market, either by re-configuration of existing tooling into new tooling, or by fabrication of pull-ahead production tooling, which eliminates prototype-tooling altogether.
Tool Restoration - Current tool repair technology relies on destructive, high-temperature welding processes. In this area, DMD is applied as a safe means to repair tooling, especially on critical show surfaces. DMD increases tool life and in many cases, saves a high-value tool that would otherwise need to be replaced.
DMD™ is a revolutionary additive metal process that fabricates fully
dense, highly accurate molds and dies … in record level lead times.
DMD is a laser-based fabrication technology that produces 100%
dense metal products “from the ground up” using powdered metal.
The first major advance in metalworking in decades, DMD produces
tooling with superior material properties … in less time … and at a
lower cost than is possible with traditional fabrication technologies.
DMD Manufacturing
DMD is an enabling technology to increase productivity in the molding, die casting, hydro-forming, forging and stamping industries. Due to its additive nature, DMD creates a new paradigm for the fabrication of tooling. DMD is applied in a variety of ways to overcome the limitations of existing subtractive metal fabrication technologies, namely:
Productivity - The performance of a tool can be significantly improved by the use of highly heat-conductive alloys below the tool surface, or by constructing cooling channels that conform to the tool surface. DMD can be used to build a hard, tool steel surface over a highly, heat-conductive core, and to construct conformal cooling channels. We call this Advanced Thermal Management, or ATM. When applied to tooling and mold components, ATM reduces cycle time without sacrificing tool life, leading to increased productivity.
Time To Market - The long lead-time (3-4 months) to build conventional tooling is a gating issue for new product introductions. In many cases, prototype and production tooling are created in sequence, resulting in lead times nearing six months. DMD reduces time to market, either by re-configuration of existing tooling into new tooling, or by fabrication of pull-ahead production tooling, which eliminates prototype-tooling altogether.
Tool Restoration - Current tool repair technology relies on destructive, high-temperature welding processes. In this area, DMD is applied as a safe means to repair tooling, especially on critical show surfaces. DMD increases tool life and in many cases, saves a high-value tool that would otherwise need to be replaced.
Sonette Ehlers is a South African inventor from Kleinmond
who has worked for the South African Institute for Medical Research, and has spent the past 3 years working on her anti-rape device,
named Rapex.
Official website : [http://www.antirape.co.za Rape-aXe (formerly known as RapeX)]
who has worked for the South African Institute for Medical Research, and has spent the past 3 years working on her anti-rape device,
named Rapex.
Official website : [http://www.antirape.co.za Rape-aXe (formerly known as RapeX)]
The collapse of the United States of America will take place sometime between September 1 and September 30, 2008 according to Nostradamus. It will be caused by many factors: the obesity epidemic, the ongoing war in Iraq, the arrogant attitude of American Liberals, and the financial insolvency of America's Social Security program. While the nation will not split into 52 breakaway republics, there is a chance that Southern Americans will take advantage of the collapse to reform the Confederate States of America and use their influence to revert NASCAR back into a regional sport. Alaska would eventually join Canada while Hawaii would become a nation with other former U.S. territories in the Pacific Ocean. Quebec, on the other hand, would take advantage of America's collapse to become a sovereign nation.
None of this will happen however. All of the above is based purely on biased speculation.
None of this will happen however. All of the above is based purely on biased speculation.
David Carbonell Ph. D. is a leading American psychologist, author and researcher on Anxiety Disorders and treating Anxiety Disorders. He is an avid proponent of self-help for people with anxiety problems. He is a member of The American Psychological Association and The Anxiety Disorders Association of America (ADAA). He is the founder and director of the Anxiety Treatment Center, Ltd., which has offices in Chicago and the surrounding suburbs. He lives and practices in Chicago.
Authored Books
* Panic Attacks Workbook: A Guided Program for Beating the Panic Trick (2004)
See Also
* Edmund Bourne
* Panic Attack
* Panic Disorder
* Anxiety Disorders
Authored Books
* Panic Attacks Workbook: A Guided Program for Beating the Panic Trick (2004)
See Also
* Edmund Bourne
* Panic Attack
* Panic Disorder
* Anxiety Disorders