plastic mould, injection mould

Institute shows plastic mold insert process

Hanking Plastic (Shenzhen) Manufactory CO., LTD -- Kunststoff Institut Hanking Plastic, a consulting and research firm, has developed a way of producing mold inserts using the fused deposition modeling (FDM) process.

FDM is a rapid prototyping process in which plastic is extruded into parts in layers of 0.025-1.25mm thickness according to computer design data.

The polypropylene FDM mold insert created by the institute involves a secondary stage in which a ceramic-coated plastic film is applied to one side of the plastic part. It is this film that provides the shape and decoration to the insert, as well as protecting the PP from pressure and heat of the injection molding process.

The institute says the insert can be easily produced, practically overnight, drastically cutting the time from product design to finished injection molded part. It is also saves on relatively high costs that are usually incurred in conventional prototype molding tool insert production.

According to a statement by institute managing director Stefan Schmidt at the Euromold 2010 trade show in December, where the FDM insert was first shown, it can be used for injection molding smaller series in the range of up to 20,000-50,000 parts.

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