Since the birth of compression molding many years ago, part design and analysis has been somewhat of a "black art" where experience, manufacturing processes and many trade secrets have been developed and perfected over the years to eventually make the creation of molded parts an extremely popular, efficient, and effective way of manufacturing a number of plastic products. You can also buy top hydraulic press parts via https://www.macrodynepress.com/hydraulic-press-spare-replacement-parts/
Interestingly, before advanced plastics even existed to be molded, the basic concept of molding was used in the baking industry to create cookies and cakes. The Pro's and Con's of Compression Molding
The benefits of the technique are undeniable, and they far outweigh its few downfalls. For many reasons, the manufacturing techniques continues to be used today in industries everywhere, for parts, components, and entire products that are large and small.
Advantages
Fast set up time
Low initial setup costs
Capable of large size parts beyond what's possible with most extrusion techniques
Allows the molding of large an small intricate parts
Capable of good surface finish
Wastes little material
Can take advantage of thermoplastics with unidirectional tapes, woven fabrics, fiber mat, and more.
This method of molding results in fewer knit lines and less fiber-length degradation than other processes, like injection molding.
Disadvantages
Production speed is not as fast as injection molding
This molding technique is generally limited to flat or moderately curved parts
Part consistency is less exact than some other manufacturing processes
In a previous article, we mentioned the rapid growth and spread of molding in the mid 20th century, following the invention of the automobile and the ever-growing need for products like automobile components and tires.
With companies like Goodrich and Goodyear needing a better and more effective manufacturing method, compression molding entered the spotlight as the golden child of fast, effective, and efficient plastic manufacturing that nearly eliminated material waste and required little secondary machining.