CPF (Center for Precision Forming) Showroom

Visit CPF (Center for Precision Forming)  

 

   Found 40 results for "CPF (Center for Precision Forming)"...

      Just show me: Everything | Articles | News | Products

Article

April 15, 2008
Lubrication and galling in stamping of galvanized AHSS
Editor's Note: This article is Part III of a three-part series discussing a study of lubrication and galling in forming of zinc-coated advanced high-strength steels (AHSS). Parts I and II, which appeared in the January/February and March... Read more...

Article

September 11, 2007
Blanking developments
Editor's Note: This is Part III of a three-part series on blanking developments. Part I, which appeared in the July issue, focused on fineblanking and tool design. Part II, which ran in the August issue, covered fineblanking part and process... Read more...

Article

July 10, 2007
Blanking developments - Part I
Editor's Note: This is Part I of a three-part series on blanking developments. Part II focuses on part and process design guidelines. Part III covers high-speed blanking and finite element methods. This column was prepared by Serhat... Read more...

Article

June 12, 2007
Evaluating film lubricants for stamping
In today's stamping plants, dry film lubricant (DFL) is gaining acceptance for its uniform application on the material surface and the possible elimination of washing operations after forming. Center for Precision Forming (CPF) of The Ohio... Read more...

Article

June 12, 2007
Stamping research gains support
This column was prepared by the staff of the Center for Precision Forming (CPF, formerly ERC for Net Shape Manufacturing), The Ohio State University, Taylan Altan, professor and director. Global competition continues to force the metal... Read more...

Article

May 8, 2007
Servo press forming applications
Editor's Note: This is Part III of a three-part series on servo presses. Part I, which appeared in the March 2007 issue, provided an introduction to servo presses. Part II, which appeared in the April 2007 issue, focused on servo press drive... Read more...

Article

March 13, 2007
Servo press forming applications Part I
This column was prepared by Serhat Kaya and Ajay Yadav, staff of the Center for Precision Forming (CPF, formerly ERC for Net Shape Manufacturing), The Ohio State University, Taylan Altan, professor and director. Numerous press manufacturers... Read more...

Article

February 13, 2007
Hot-stamping boron-alloyed steels for automotive parts - Part I
Editor's Note: This article is Part I of a three-part series discussing hot stamping of boron steels. Part II, which will appear in the January 2007 issue, will discuss the microstructure of boron steels and coatings on the sheet surface. Part... Read more...

Article

January 18, 2007
Hot-stamping boron-alloyed steels for automotive parts - Part II
Editor's Note: This article is Part II of a three-part series discussing the microstructure of boron steels and coatings on the sheet surface. Part I, which appeared in the December 2006 issue, discussed process methods and uses. Part III, which... Read more...

Article

November 7, 2006
Multipoint-control die cushion systems for stamping complex parts - Part III
Editor's Note: This article is Part III of a three-part series on multipoint-control (MPC) die cushion systems. Part I, which appeared in the September issue, discussed novel press and design concepts using MPC systems. Part II, which appeared... Read more...

Article

November 7, 2006
Multipoint-control die cushion systems for stamping complex parts
Editor's Note: This article is Part III of a three-part series on multipoint-control (MPC) die cushion systems. Part I, which appeared in the September issue, discussed novel press and design concepts using MPC systems. Part II, which appeared... Read more...

Article

October 10, 2006
Multipoint-control die cushion systems for stamping complex parts - Part II
Editor's Note: This article is Part II of a three-part series that discusses multipoint-control (MPC) die cushion systems applied to the forming of stainless steel double sinks. Part I, which appeared in the September issue, discussed novel press... Read more...

Article

August 8, 2006
Warm forming of stainless steels
Editor's Note: This article is Part II in a two-part series on warm forming stainless steel. Part II discusses simulation and experimental studies conducted by the ERC/NSM on formability of stainless steel at elevated temperatures. Part I, which... Read more...

Article

July 11, 2006
Warm forming of stainless steels - Part I
Editor's Note: This article is Part I of a two-part series on warm forming stainless steel. Part I discusses the need for warm forming of stainless steel and the results of previous work on the material. Part II, which will appear in August,... Read more...

Article

June 13, 2006
Structured sheet metal - Part II
This column was prepared by Michael Mirtsch and Ajay Yadav of the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Taylan Altan, professor and director. Structured sheets have enhanced mechanical... Read more...

Article

June 13, 2006
Evaluating dry film lubricants for automotive applications Part II
This column was prepared by Hyunok Kim, a staff member of the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Professor Taylan Altan, director. Stamping lubricants tend to fail if contact... Read more...

Article

June 13, 2006
Evaluating dry film lubricants for automotive applications Part I
This column was prepared by Hyunok Kim, a staff member of the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Professor Taylan Altan, director. In stamping operations, wet (oil-based) or dry film... Read more...

Article

June 13, 2006
Structured sheet metal
Editor's Note: This article is Part II of a two-part series discussing structured sheet metal and different structuring processes. Part I compares various structuring processes. This column was prepared by Michael Mirtsch and Ajay Yadav... Read more...

Article

May 9, 2006
Structured sheet metal - Part I
Editor's Note: This article is Part I of a two-part series discussing structured sheet metal and different structuring processes. Part II, which will appear in the June issue, will discuss specific applications for and advantages of... Read more...

Article

April 11, 2006
Processes for hydroforming sheet metal
Editor's Note: This article is Part III of a three-part series that discusses various sheet hydroforming processes. Part I, which appeared in the February issue, discussed sheet hydroforming with a die only (SHF-D). Part II, which appeared in the... Read more...

Article

November 8, 2005
Evaluating dry film lubricants for automotive applications Part III
This column was prepared by Hyunok Kim, a staff member of the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Professor Taylan Altan, director. Lubrication has a key role in the deep drawing and... Read more...

Article

September 13, 2005
Bend allowance and springback in air bending
Figure 1 In air bending, a sheet is placed in the die, and the press ram descends and bends the sheet into a V shape. Figure 2 Bend allowance (also known as bend deduction) can be used to predict the initial flat length of the... Read more...

Article

August 9, 2005
Air-assisted forming of aluminum alloy for automotive components
Figure 1 An important component in the assembled front axis support structure is the cross member, which is made from an aluminum-alloy tube extrusion with a rectangular cross section. Editor's Note: This column was... Read more...

Article

June 8, 2004
Hydroforming tapered engineered tubes
In tube hydroforming processes, tube is expanded by a high-pressure medium (usually water) until it fills a die cavity. Since the volume of tube material (the product of its cross section multiplied by its length) remains constant, the tube wall... Read more...

Article

October 9, 2003
Using finite element analysis to roll-form tubes
Figure 1 Roll forming causes yield stress, flow stress, and hardness variations in material properties around a tube's circumference. These variations may lead to premature bursting or excessive thinning in hydroformed parts. This makes... Read more...

Article

October 9, 2003
Predicting springback in air bending, straight flanging
Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM), The Ohio State University, Professor Taylan Altan, director. Air bending and straight flanging are the most... Read more...

Article

August 28, 2003
Using binder force control, force modulation, to improve part quality, stamping efficiency
Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM), The Ohio State University, Professor Taylan Altan, director. Binder, or blank holder, force control is an important... Read more...

Article

June 12, 2003
Dieless NC forming
Figure 1 The principles of dieless forming are demonstrated on a three-axis CNC machine. Source Amino Corp. Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/... Read more...

Article

October 24, 2002
Hydroforming of passenger car fuel tanks
Editor's Note: This column was prepared by Serhat Kaya, graduate research associate at the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Professor Taylan Altan, director. In the July/August 2002... Read more...

Article

October 10, 2002
Material property variations in tubes used for hydroforming
Figure 1: A schematic view shows the three regions from which three strips of sheet are cut as raw material for manufacturing tubes. Only tubes whose material properties are consistent can be hydroformed into a high-quality product.... Read more...

Article

April 15, 2002
Sheet hydroforming in automotive applications
Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM), The Ohio State University, Professor Taylan Altan, director. Various types of sheet hydroforming operations,... Read more...

Article

March 14, 2002
Determining flow stress of tubes
The conventional uniaxial tensile test often is used to determine the properties of tube material for hydroforming. However, a biaxial test is more appropriate for hydroforming applications. Material data obtained from a uniaxial tensile test... Read more...

Article

February 2, 2002
Design rules for forming aluminum stampings—Part 1
Figure 1: In deep drawing, if the die clearance is too large, the component forms a cone instead of a cylinder. Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/... Read more...

Article

February 2, 2002
Design rules for forming aluminum stampings—Part 2
Figure 1: Addendum types enable or improve the stamping of a sheet metal part. A draw wall, for example, connects the trim line and the punch opening line. Editor's Note: This column was prepared by the staff of the Engineering... Read more...

Article

January 31, 2002
Warm forming of aluminum alloys
Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/NSM), The Ohio State University, Professor Taylan Altan, director. The Department of Energy and the U.S. Council for... Read more...

Article

November 29, 2001
Hydroforming Y-shaped stainless steel exhaust components
Today, an increasing number of automobile exhaust parts are being hydroformed. T-shapes (three-way connectors with a right-angled branch) and Y-shapes (three-way connectors with an angled branch) are the most commonly hydroformed exhaust system... Read more...

Article

October 11, 2001
The importance of the n value in sheet forming
Figure 1: Magnitudes of elongation at the onset of necking vary with the n value. Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM) , The Ohio State... Read more...

Article

July 12, 2001
Experimenting with flexible blank holder force control: Prototype shows promise for difficult-to-form materials
The quality of deep drawn sheet metal products is determined largely by the rate at which a sheet is drawn into a die. Varying blank holder force (BHF) as a function of time or the press stroke is of great importance. In the beginning of a deep... Read more...

Article

June 15, 2001
Successful tube hydroforming: Watching parameters, accurately simulating the process yield good results
A typical tube hydroforming system is shown in Figure 1 . Within this system, a host of factors must be taken into account, from starting tube geometry and material properties to the quality of the final part (such as thickness distribution and... Read more...

Article

January 15, 2001
How to draw round cups deeper
Figure 1 : In deep drawing, sheet metal is forced into a die by a punch to form a part. The draw ratio decreases throughout the process. In general, deep drawing (see Figure 1 ) is a process in which a blank is forced into or through... Read more...