The difference between vacuum forming and thermoforming?
Thermoforming and vacuum forming are both methods of processing plastic sheets to create 3D shapes. The main difference between these two methods lies in the process and the final product.
1. Process: In thermoforming, the plastic sheet is heated until it becomes pliable, then it is formed to the shape of the mold by using pressure or vacuum. In vacuum forming, after the plastic sheet is heated, a vacuum is used to suck the sheet onto the mold, forming the shape.
2. Precision: Thermoforming generally allows for more precision and detailed shapes compared to vacuum forming. This is because in thermoforming, the pressure can be controlled more accurately, allowing for more precise shapes and details.
3. Cost: Vacuum forming is generally cheaper than thermoforming. This is because vacuum forming uses less expensive equipment and can produce parts faster.
4. Material Thickness: Thermoforming can handle thicker materials compared to vacuum forming. This makes thermoforming more suitable for heavy-duty applications.
5. Final Product: Thermoformed products are generally more robust and have a higher quality finish than vacuum formed products. This is because thermoforming allows for better control over the material, resulting in a more consistent and higher quality product.
6. Applications: Thermoforming is often used for producing larger and more complex parts, such as car bumpers, refrigerator liners, and plastic pallets. Vacuum forming, on the other hand, is often used for simpler and smaller parts, such as packaging, trays, and display stands.
