Press Fit Pin

An interference fit also known as a press fit or friction fit is a form of fastening between two tight fitting mating parts that produces a joint which is held together by friction after the parts are pushed together.

Press fit pin. One latter company recently asked baltec to customize two da 850 pneumatic presses so they can press fit pins into 40 different height pistons for refurbishing hvac compressors. Should these design guideline be inadequate reference the charts given within the hole shaft tolerance pages. Press fit pins emerged in the early 1970s. Isfit solderless compliant pin terminal press fit connector technology i pex http www daiichi seiko co jp english product automotive.

Frictional force holds the parts together after they have been joined to create a gas tight cold welded solder less connection. The all new 0 4mm eon press fit zone is designed to work with the now industry standard plated through hole size of 0 60 0 05mm. Critical components that must not sustain. Modern design has many alternatives.

Review your design to determine if you have similar application requirements. The picture 4 shows the most common materials and layers used in the automotive industry. Picture 4 the picture shows the typical materials used for press fit pins. The press fit pin can be made of different base materials featuring two galvanic layers the under plating and the top plating in a sandwich structure.

The action pin and multispring press fit pins can be used in various applications in vehicles from the passenger compartment to the harshest automotive environments including the engine bay area. Each direct acting press features a ram that produces up to 8 5 kilonewtons of force and a stroke up to 80 millimeters. For the traditional use of press fits where the pins both join and accurately locate the parts better designs use slip fit dowel pins for self locating and bolts to join the parts. The press fit pin design meets the standardized blade sizes and interfaces of the automotive industry.

Depending on the amount of interference parts may be joined using a tap from a hammer or pressed together using a hydraulic ram. Introducing new 0 4 mm press fit pin. Dowel pin size chart machined asme ansi. Install these pins in a plate or table and mate with holes in a workpiece for precise alignment.

Design for press and slip fit of dowel pins used for alignment of mating parts utilizing gd t tolerancing methods. Implementing press fit pin technology into existing automation processes.