About GRIPflow®

It's stamped but looks like a machined part

Find out how GRIPflow® can give you a precision part while saving you money.

Cut the cost of producing conventional metal stampings by eliminating secondary machining operations with GRIPflow®.

Interested in quality metal stampings? Request a quote for your project today.

What is GRIPflow®?

GRIPflow® is a metal stamping process developed in the United States by Edward Bennett. He blended the best features of conventional stamping and fineblanking to produce a quality precision part that costs less.

GRIPflow® can produce parts with fully sheared, straight-cut edges and tight tolerances for the entire thickness of the part. It can also reduce the costs of conventional metal stampings that require secondary machining operations such as drilling, reaming, countersinking, counterboring, milling, straightening, shaving, and broaching. Often, secondary operations can be eliminated by the single station of a GRIPflow® compound die.

The tight tolerances and high quality of GRIPflow® stampings are achieved by the combination of the tool design and GRIPflow® hydraulic punch press. The tool looks like a conventional die but there is almost zero clearance between punch and die. GRIPflow® presses have the versatility to produce both conventional and GRIPflow® parts.

GRIPflow® is an economic alternative to fineblanking, conventional tooling (including shave dies), laser cutting, waterjet cutting, powdered metal, forging, castings and secondary machining operations.

1/2” thick heavy equipment bracket made with a GRIPflow® Compound Die.
Material: C1008-1010 Steel

Cost Savings With GRIPflow®

  • GRIPflow® stampings are considerably less expensive than fineblank stampings and/or conventional stampings requiring secondary operations.
  • GRIPflow® dies can be 30%-60% cheaper than fine blanking dies.
  • GRIPflow® dies can be 10%-30% cheaper than conventional dies. Cost savings are the result of the specialized die-making procedures and state-of-the-art equipment at EBway.
  • Slow machining techniques, such as laser and water-jet processes, cannot compete with GRIPflow® production rates when the volume is over 5,000 parts.

Latching mechanism made with a GRIPflow® Compound Die.
The part was blanked with the coined serrations and pierced holes all in one press stroke.
Material: C1010 Steel, .144”-.154” thick.

Some remarkable features of GRIPflow® are the following:

True square edges with a full bearing surface. The edges are parallel to each other and perpendicular to the top and bottom surfaces.

Excellent part to part repeatability.

Tolerances as low as 0.0005” and part flatness to 0.001” per linear inch.

Edge finishes of 32 RMS are typical.

Producing holes smaller in diameter than the material thickness is normal. Holes as small as 30% of the material thickness have been achieved.

Round or shaped holes can be extremely close to each other or to the part edge – a web as small as 30% of the material thickness has been achieved.

A GRIPflow® Stamping Station Can Include:

  • Piercing
  • Coining
  • Embossing
  • Lancing
  • Bending
  • Blanking

A nail gun part made with a GRIPflow® Progressive Die which included the coined groove and all holes.
The small holes are approximately 52% of the material thickness.
Material: 3003-H14 Aluminum, .120”-.130” thick.

And GRIPflow® Eliminates Many Secondary Operations

  • Drilling
  • Reaming
  • Countersinking
  • Counterboring
  • Milling
  • Broaching
  • Shaving
  • Flattening
  • Semi-piercing
  • Coining
  • Bending
  • Offsets
  • And chamfering (angle cuts)

Automotive part in a steering column mechanism made in one press stroke with a GRIPflow® Compound Die.
The tool made the form, pierced the holes, coined the counterbores and blanked the part.
Material: C1020 Steel, .073”-.084” thick.

Download the GRIPflow® Design Guide

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EBway Precision Metal Stampings