Clean-Edge® Blanking is the process of stamping high-tensile, pre-tempered material to create a maximum edge condition with minimal shear and controlled breakage. This process reduces stress risers on the blanked edge, thus highly increasing fatigue life.

Process Advantages of Clean-Edge® Blanking

This process results in lowest number of fatigue failure initiation sites, which is essential for long-term, consistent performance of stamped parts. It also:

• Minimizes residual tensile stress
• Decreases burr occurrences
• Controls edge condition

Our Tooling Research and Design Produces Optimal Performance Standards:

• Proprietary design based on in-depth research
• In-house tooling for superior customer service
• High-performance progressive and compound carbide dies
• Proprietary surface finish requirements for cutting components
• Die clearance adjustable to within .0025mm

ISO = All things equal (from Greek word isos). Superior surface finish = ISO-Finishing™.

• Equal on both sides of component
• Equal from piece #1 to piece #1,000,000+
• Engineering-approved process covering all aspects of finishing

 

Surface Finish Advantages:

• Creates finished surface as smooth as .25 Rz maximum
• Induces light magnitude of residual compressive stresses for increased fatigue life
• Random matte finish reduces surface imperfections

Click here for a surface finish comparison chart.
 

Edge Radius Advantages:

• Eliminates stress-concentrating notches/burrs
• Symmetrically finishes edge to remove stamping distortions
• Removes tensile stress from blanking operations
• Controls process to prevent over-finishing

Click here for an edge radius comparison chart.
 

Research and Development Objectives:

• Dedicated resources
• Process/Product improvements
• New/Patented products
  • 3D solid modeling (CAD)
  • Prototyping
  • Laboratory testing, analysis and benchmarking
  • Finite Element Analysis (FEA)

Capabilities:

• Fabrication/Tool Room
• Support/PrototypeTesting
• Applications Laboratory
• Materials Engineering
• Scanning Electron Microscope (SEM)

Finite Element Analysis (FEA):

• Complete FEA capabilities from concept to final design

Failure Analysis

• Complete failure-analysis testing using Scanning Electron Microscope (SEM), Energy Dispersive Spectrography (EDS) and x-ray defraction

 

Prototype Reports

• In-house research optimizes prototype methods

Dedicated Resources:

• Design/Prototyping
• Manufacturing systems
• R&D for future application

• In-house design and build (HCE)
• Proprietary processes
• Dies (Progressive, Compound)
• Material (Carbide, CPM, High-strength steel)
• Spare components 

Products: almen strips, automotive valve springs, belleville washers, blower housings, CloverSprings™, clutch springs, compression springs, control rods, curved washers, custom compression springs, custom extension springs, custom flat metal parts, custom stampings, custom torsion springs, disc springs, discharge valves, dome springs, electronic assembly products, extension springs, fine blanking, finger washers, flapper valves, flat spiral springs, flat springs, fourslide, mechanical assembly products, metal stampings, multislide, reed valves, retaining rings, snap discs, snap rings, springs, spring washers, suction valves, torque springs, torsion springs, transmission springs, valve plates, valve springs, wave washers, wire forms, DFARS compliant springs, ITAR compliance