Course Title: Sheet Metal Stamping
10 Professional Development Hours/1.0 CEUs
Course Description: The Sheet Metal Stamping Course begins by discussing the evolution of the stamping die, and the impact it has had on the industrial revolution. A review of single operation dies such as blank, compound and pierce, form, and draw dies are also discussed. The dies that perform multiple operations on the same piece, such as progressive and transfer dies are also mentioned. Other topics that are elaborated upon include, different dies relative to the final product’s parameters, complexity of the final product, material that will be used to fabricate from, and production volume requirements of the final product.
Overall Course Objectives:
Understand the basics of sheet metal stamping.
Gain knowledge on die design and the components that make up dies.
Develop greater expertise in the process of sheet metal stamping, stamped part design and the parameters affecting the stamping process.
Course Content:
Lesson 1 – Fundamentals of Sheet Metal Stamping
Objectives:
Describe the two methods used to divide a part into its component sections.
List different forming modes used in sheet metal stamping.
Understand the interactions of forming modes.
Lesson 2 – Sheet Metal Stamping Operations
Objectives:
Explain the steps in the operation sequence.
Develop an understanding of metal deformation.
Identify the common methods for presses.
Lesson 3 - Types of Stamping Dies
Objectives:
List the six basic types of stamping dies and determine if they are single or metal
deformation.
Describe the basic types of stamping dies.
Recognize advantages and limitations of the six basic types of stamping dies.
Lesson 4 - Stamping Die Sets, Retainers, Basic Elements of a Die
Objectives:
Describe a die set, and explain how to align a die set.
Identify different types of retainers, and list their advantages.
List and describe the basic elements of a die.
Lesson 5 – Die Components
Objectives:
Understand how cams, slides, and arbors are used for cutting or forming in directions other than the normal vertical orientation of a stamping press.
Explain the function of a rocker arm.
Identify die component materials and their uses.
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2006-07-02
2 dimensional strain data
Stamping out die defects
NIST post doctoral research fellow Mark Iadicola examines a sample of sheetmetal tested with NIST's new formability-testing station.
RESEARCHERS AT THE NATIONAL Institute of Standards and Technology (NIST) want to eliminate defects in dies used to make sheetmetal parts. Their work could yield impressive cost savings — particularly for the automotive industry, which spends an estimated $700 million a year on designing, testing, and correcting new dies for its latest models. About half of the total cost goes for remedying unanticipated errors manifested as wrinkles, splits, excessive thinning, or other defects.
Using NIST's one-of-a-kind test equipment, which fits together a metal-stamping test station with an X-ray stress-measurement system, researchers make detailed maps of stresses and strains as sheets of steel and other metals are punched, stretched, or otherwise shaped to achieve the desired part geometry. According to project leader Tim Foecke, the system measures stress and strain behavior in many different directions while the sheet is stretched in two directions simultaneously, a condition most commonly seen in forming operations.
Current methods extrapolate from strain-measurement testing that stretches sheets in only one direction. As a consequence, newly designed dies often undergo successive rounds of refinement to correct for these simplifications in computer models.
U.S. automakers and producers of steel, aluminum, and other metals, including developmental ones, are supplying Foecke's team with samples for testing and evaluation. The aim of the project is to build a database of material properties that designers can feed into computer models for predicting whether would-be dies can form particular metals into specified shapes, within tolerances. Project findings might point the way to new metalforming methods, according to NIST.
NIST post doctoral research fellow Mark Iadicola examines a sample of sheetmetal tested with NIST's new formability-testing station.
RESEARCHERS AT THE NATIONAL Institute of Standards and Technology (NIST) want to eliminate defects in dies used to make sheetmetal parts. Their work could yield impressive cost savings — particularly for the automotive industry, which spends an estimated $700 million a year on designing, testing, and correcting new dies for its latest models. About half of the total cost goes for remedying unanticipated errors manifested as wrinkles, splits, excessive thinning, or other defects.
Using NIST's one-of-a-kind test equipment, which fits together a metal-stamping test station with an X-ray stress-measurement system, researchers make detailed maps of stresses and strains as sheets of steel and other metals are punched, stretched, or otherwise shaped to achieve the desired part geometry. According to project leader Tim Foecke, the system measures stress and strain behavior in many different directions while the sheet is stretched in two directions simultaneously, a condition most commonly seen in forming operations.
Current methods extrapolate from strain-measurement testing that stretches sheets in only one direction. As a consequence, newly designed dies often undergo successive rounds of refinement to correct for these simplifications in computer models.
U.S. automakers and producers of steel, aluminum, and other metals, including developmental ones, are supplying Foecke's team with samples for testing and evaluation. The aim of the project is to build a database of material properties that designers can feed into computer models for predicting whether would-be dies can form particular metals into specified shapes, within tolerances. Project findings might point the way to new metalforming methods, according to NIST.
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