You have started your own business and are looking for ways to produce innovative products. One of them is the plastic components for your prototype. But how to choose? PEEK and PPS give you a bunch of options, but in real life, you will not enjoy all of them.
When you’re designing your next prototype, you should have a good understanding of the different properties of PEEK vs. PPS plastic. This article will compare both materials and help with PPS machining.
This article is designed to give you an overview of the two common types of engineering plastics used in computer-numerical control (CNC) machining and prototyping: PEEK and PPS. Both of these materials are PPO (polyphenylene sulfide) thermoplastics that are commonly used in composite manufacturing and in miniaturized plastic parts. PEEK and PPS machining, however, relies on the strength of their chemical resistance rather than adhesives or specialized joint fabrication techniques to hold them together.
Introduction to PEEK and PPS
PEEK and PPS are two of the most popular thermoplastics used in electronics manufacturing. Whilst they both have similar properties and are commonly used to make prototypes, there are some significant differences between them.
PEEK (PolyEtherEtherKetone) is a very high-temperature resistant plastic that has an excellent toughness to weight ratio and is also resistant to chemicals, acids, and solvents. China PEEK polymer sheet is often used in medical industries and is sometimes found in aerospace applications as well. PPS (PolyPropyleneSteroide) is a thermoplastic polymer that can be made into fibers and molded into parts. It has a very high impact strength and stiffness-to-weight ratio as well as good chemical resistance. It is commonly used as electrical/electronic components, automotive/transportation parts, consumer goods, packaging, etc.
PEEK is a type of thermoplastic that is commonly used for electronic housing due to its high-temperature resistance (up to 260C). It is also highly resistant to chemicals, making it ideal for food processing applications. This particular material has good flame retardant, heat resistant, and electrical insulation properties, all of which make it perfect for use in your product.
PEEK can be pressed, extruded, injection-molded, or machined while PPS can only be molded or extruded. Both materials have excellent mechanical properties at elevated temperatures but PEEK is superior in this regard because it retains its mechanical properties up to 300°C whereas PPS can only go up.
PPS is another thermoplastic commonly used in manufacturing as it has good mechanical strength and stiffness. It is often used in the medical industry as an alternative to PEEK due to its biocompatibility and ability to withstand sterilization at high temperatures. For the small run machining, you need the PPS sheet supplier to helo you!
PPS machining guide
PPS is a great engineering material with good thermal stability. It offers the best of both worlds, combining the high impact resistance of polycarbonate with the toughness of nylon. It is a durable material that provides excellent performance in a wide range of applications. If you have no machining equipment yourself, you need the PPS material machining service.
PPS is machined using standard metal cutting techniques. The recommended cutting speed for this material is 90m/min to 100m/min at a depth of cut of 0.5mm to 1mm. For finishing operations, a feed rate of 25mm/min to 50mm/min gives the best surface finish and tool life on PPS material.
PPS is generally machined using HSS or carbide tooling, although ceramics can be used if only light cuts are required such as EDM work or thread tapping. In order to achieve the best possible finish, it is recommended that tools are sharpened prior to use by grinding or honing as appropriate.
After machining, PPS may be hand-polished with abrasives and/or fine wet & dry paper (e.g. 1200 grade) for a mirror finish if required, but this is not essential as it has a very low coefficient of friction which makes it self-lubric