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2. Transfer molding - Wikipedia

   en.wikipedia.org/wiki/Transfer_molding

   For example, voids in a transfer molded parts significantly reduce strength and modulus. [7] There can also be defects when fibers are used around sharp corners. The resin flow can create resin rich zones on the outside of these corners. [8] Pressure distribution. There are several contributing factors to voids in the final product of transfer ...

3. Wood finishing - Wikipedia

   en.wikipedia.org/wiki/Wood_finishing

   Successful filling of voids in wood requires the filler to precisely match the colour and grain pattern of the wood around the void, which is difficult to achieve in practice. Furthermore, filled voids do not behave like wood during subsequent finishing steps, and they age differently to wood. Hence, repairs to wood using fillers may noticeable ...

4. Void (composites) - Wikipedia

   en.wikipedia.org/wiki/Void_(composites)

   Void content in composites is represented as a ratio, also called void ratio, where the volume of voids, solid material, and bulk volume are taken into account.Void ratio can be calculated by the formula below where e is the void ratio of the composite, V v is the volume of the voids, and V t is the volume of the bulk material.

5. Resin transfer moulding - Wikipedia

   en.wikipedia.org/wiki/Resin_transfer_moulding

   The distinctive feature of resin transfer moulding is that the reinforcement materials are placed into this cavity, and before the introduction of the matrix material, the mould set is closed. Resin transfer moulding involves numerous varieties which differ in the mechanics of how the resin is introduced to the reinforcement in the mould cavity.

6. Multi-material injection molding - Wikipedia

   en.wikipedia.org/wiki/Multi-material_injection...

   Multi-material injection molding (MMM) is the process of molding two or more different materials into one plastic part at one time. [1] As is the case in traditional injection molding, multi material injection molding uses materials that are at or near their melting point so that the semi-liquidous material can fill voids and cavities within a pre-machined mold, thus taking on the desired ...

7. Vacuum assisted resin transfer molding - Wikipedia

   en.wikipedia.org/wiki/Vacuum_assisted_resin...

   Vacuum Assisted Resin Transfer Molding (VARTM) or Vacuum Injected Molding (VIM) is a closed mold, out of autoclave (OOA) [1] composite manufacturing process. VARTM is a variation of Resin Transfer Molding (RTM) with its distinguishing characteristic being the replacement of the top portion of a mold tool with a vacuum bag and the use of a vacuum to assist in resin flow. [2]