Custom Thermoforming Process
Thermoforming design services and manufacturing are available for a variety of industries. Businesses that choose thermoforming design for shipping containers should understand the benefits and limitations of this process. In some cases thermoforming is the best choice and in others injection molding or structural foam should be used.
Studying Steps in Thermoforming Design
The thermoforming process begins with the application of high heat to sheets of extruded plastic. The temperature varies depending on sheet thickness and polymer mix used. The melted plastic sheet is pressed against a detailed mold which has been cast specifically for this part prior to the start of manufacturing. The sheet forms to the mold with the help of a vacuum. The mold which is equipped with cooling lines, then cools the plastic. Finally, the formed part is removed from the machine and trim operations are performed. Also, details such as labeling, urethane inserts and seat belts are installed at this final stage.
The success or failure of thermoforming design depends on several factors. The thickness of the initial plastic sheet is one important factor in determining the strength of the final product. Designers also need to consider how the load will be packed. Can the product transfer weight through the part or does the tray and pallet need to handle the load? Are critical areas on the part, such as machined, painted, sharp or fragile areas well protected? Is the tray easy to load and ergonomically friendly? How will the load be shipped? Will it be robotically handled? The final variable in thermoforming design is deciding which polymer to use and any additives such as fire retardant or UV protection needed during custom production.
Robinson Industries Inc. was the first manufacturer to use vacuum forming for custom containers and pallets. The sales staff at Robinson can speak to the company's technical capabilities when prospective clients email sales@robinsonind.com.
Other Industry Related Articles
Thermoformed Plastic
Thermoforming Process
Pallet Exchange Program
Full Use Plastic Pallets |
