START THE ASSEMBLY PROCESS RIGHT IN THE PRESS
Fastening parts together typically requires a labor intensive assembly process like spot welding, screwing or clipping, and often demands the purchase of separate hardware. There’s a way to avoid those secondary processes by using tools we call “connective forming tools” that run right in the punch press. You may already have tools in your shop that will allow you to create fasteners directly on the part, preparing it for assembly without a secondary operation.
Connective forming tools fall into two categories: common tools you’ve likely used for other purposes, and those that are made specifically for fastening. Below, see a list of tools you can use to make part assembly more efficient while eliminating secondary operations.
FAMILIAR FORMS THAT DOUBLE AS CONNECTORS
Lance and Form: Lance and Forms work in air flow, card guide and other roles. For fastening, slide a lance and form into a rectangular hole for secure part assembly.
Extrusion or Half Shear: Extrusions or half shear forms can serve as screw holes, tube holders, locators and more. When paired with a round hole, the extrusion or half shear snaps and locks two parts in place.
Louver: Louver forms typically create vents for airflow. However, a common louver and a rectangular hole work like a tab and a slot to securely hold parts together.
FORMS MADE FOR CONNECTING
Thread Form and Thread Loop: These forms eliminate the need for secondary threading operations. Simply formed in the punch press, these thread forms emerge ready for assembly.
Hinge: Hinge forming tools integrate hinges directly onto the sheet. This eliminates the need to procure and fasten hinge hardware onto the part as a second step.
Zip-Tech: By creating a series of interconnected snaps, the Zip-Tech tool is an innovative fastening solution for exceptionally secure attachment between sheets.
Read about a pizza oven fabricator that eliminated secondary operations with the use of connective forms.
To see connective forms in action, watch this video highlighting the above techniques.
These are just a selection of forms that can be used to join parts. What other methods have you used?
Visit wilsontool.com/connectiveforms to explore more connective forming ideas. Or, contact our punching tooling technicians at firstname.lastname@example.org or 800-328-9646 for help in determining if you may have an operation that can be streamlined through the use of connective forms.