Platens Dies & Tooling Options & Descriptions

  • Platens

     

    Platens

    In manufacturing, a platen is a flat plate of a press utilized in laminate, plastic and metal product industries.  A platen is typically heated with oil, water, steam and/or electricity.

    In metal forming processes, a platen is the component that houses the mold for forging the required shape. The platen tends to be the heaviest and strongest part of the press due to the massive forces, temperatures and pressures that it has to withstand.  A platen for a 5000 ton press can weigh up to 350 tons.

  • Dies & Tooling

     

     

     

     

     

     

    Dies & Tooling

    Die making is a sub-genre of tool making that focuses on making and maintaining dies. This often includes making punches, dies, steel rule dies, and die sets. Precision is key in die making; punches and dies must maintain proper clearance to produce parts accurately, and it is often necessary to have die sets machined with tolerances of less than one thousandth of an inch. Tool making typically means making tooling used to produce products. Common tools include metal forming rolls, lathe bits, milling cutters, and form tools. Tool making may also include precision fixturing or machine tools used to manufacture, hold, or test products during their fabrication. Due to the unique nature of a tool maker's work, it is often necessary to fabricate custom tools or modify standard tools.

  • Diffusion Bonding

     

     

     

    Diffusion Bonding

    Diffusion bonding is a solid-state welding technique used in metalworking, capable of joining similar and dissimilar metals. It operates on the materials science principle of solid-state diffusion, wherein the atoms of two solid, metallic surfaces intermingle over time under elevated temperature.  Diffusion bonding is typically implemented by applying both high pressure and high temperature to the materials to be welded; it is most commonly used to weld "sandwiches" of alternating layers of thin metal foil and metal wires or filaments.  Diffusion bonding is performed by clamping the two pieces to be welded with their surfaces abutting each other.  Prior to welding, these surfaces must be machined to as smooth a finish as economically viable, and kept as free from chemical contaminants or other detritus as possible.  Any intervening material between the two metallic surfaces may prevent adequate diffusion of material.  Once clamped, pressure and heat are applied to the components, usually for many hours.  At the microscopic level, diffusion bonding occurs in three simplified stages:  Before the surfaces completely contact, asperities (very small surface defects) on the two surfaces contact at the microscopic level and plastically deform.  As these asperities deform, they interlink forming interfaces between the two surfaces.  Elevated temperature and pressure causes accelerated creep in the materials; grain boundaries and raw material migrate and gaps between the two surfaces are reduced to isolated pores.  Material begins to diffuse across the boundary of the abutting surfaces, confusing this boundary and creating a bond.

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