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  • Tips on Injection Mold Design

    Discussion in 'Industrial design' started by odinmould, Mar 13, 2015.

    1. odinmould

      odinmould Member

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      Injection molding is one of the most common manufacturing methods to produce thin-wall engineered parts. Development of molds that produce high quality parts is a talent that develops with experience. Due to the time and effort required to develop a good set of tooling, it is not unusual for manufacturers to seek out injection molding machines that will be compatible with their molds, rather than trying to redesign molds to work on specific machines.
      As designers of injection molded products you are probably well aware of design best practice. What you may not appreciate is the important contribution a well designed mould tool can make to the new product development process. The wrong decisions taken at the critical early stage of a project will add cost and time to mould tool design, manufacture and maintenance, put pressure on product launch dates, and, of course, adversely affect product manufacture and in-use performance.
       
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    3. backlong

      backlong New Member

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      I am a moldmaker turned mold designer and have been using Unigraphics for about 5 years. We completely silid model all of our molds and use the UG cam package for all of our cnc machining. Moldwizard saves a lot of time by importing standard components.
       
    4. vexmatech

      vexmatech New Member

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      Be aware of gate orientation when gating into the thick regions to avoid jetting. You can prevent jetting by placing the gate so that the flow is directed against a cavity wall.

      When creating a 2D part drawing for quotation, designers should focus on the annotations to communicate the final part design intent to the quoting suppliers. At minimum, the following items should be shown or specified for a successful process:
      • Finishes for cavity and core according to Society of the Plastics Industry (SPI) standard, textures type and number
      • Visible or cosmetic surfaces and non visible surfaces
      • Material type, manufacturer, and grade number or flexural modulus required
      • Material color, Pantone number, or other paint manufacturers
      • Tolerances as per SPI Standards and Practices of Plastics Molders and critical dimensions and tolerances to be held
      • Suggested gate location
      • For a cosmetic or mechanical part, where ejector pins, weld or flow lines are not acceptable
      • Acceptable location for part and revision number, molding date insert
      • Acceptable flatness deviation
      • With which parts and how this part will be assembled or mated

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    5. StiffenThomas

      StiffenThomas New Member

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      Thanks for sharing Nice Topic, i will be in conversation to know other peoples thoughts
       

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