This FAQ guide is based on machine shop and machining questions we are often asked. This is meant to provide general information but there are exceptions to some of the CNC prototyping or manufacturing answers listed below. If you think we haven&#;t addressed your subject, feel free to or give us a buzz
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While receiving manufacturing service, you need to make various choices that will determine the quality of your part. You want to produce plastic parts, and you have decided to have your parts produced with a CNC plastic processing method with high surface quality and low fault tolerance. Then you research the prices of CNC machining services. So have you determined which plastic material the parts should be made of?
This article will help you choose the appropriate plastic for your project. The number of plastic material types used in manufacturing with CNC machining is quite high. In our article, we, as Xometry Türkiye, will examine the plastic materials we offer you in our manufacturing service with the CNC method.
ABS is a raw material with a wide usage area and cost-effectiveness, preferred over 3D printing, CNC machining and injection molding manufacturing methods. It also has high impact strength and electrical resistance. The average tensile strength of ABS material is 43.7 MPa.
Where Is It Used?
Castermid, a type of polyamide, has very high impact resistance. It is ideal for use in products that require abrasion and impact resistance. Since it is a self-lubricating material, gear wheels are used in moving parts. This makes it a raw material alternative for parts such as rollers and gears produced using metal with CNC machining. The average tensile strength of castermid material is 80 MPa.
Where Is It Used?
Nylon, which we can process with CNC machines, is a durable plastic that can be used for various purposes. The average tensile strength of nylon material is 71.9 MPa.
Where Is It Used?
Acrylic is the trade name for PMMA plastic and is suitable for use in CNC machining. It has high impact resistance and surface resistance. It is scratch resistant. It is also a significant advantage because it can bond with acrylic cement. The average tensile strength of acrylic material is 69MPa.
Where Is It Used?
Delrin has a low friction coefficient and high hardness. Since it is self-lubrication, it can be used to produce moving machine parts that need to work without lubrication in water and humid environments. The average tensile strength of Delrin material is 74.8 MPa.
Where Is It Used?
Polycarbonate (PC) plastic is a transparent thermoplastic material. Various colour options are available. It can also be translucent. The average tensile strength of PC material is 66.2 MPa.
Where Is It Used?
PE (Polyethylene) is an engineering plastic with high resistance to wear and tear, resistant to impacts and suitable for machining with CNC machines. Different types, such as LDPE and HDPE, can be preferred according to the desired density and hardness level. The average tensile strengths of PE material are 26.5 for HDPE and 14.2 MPa for LDPE.
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Where Is It Used?
Thanks to its low coefficient of friction and excellent wear and fatigue resistance, PET materials are one of the ideal products for constructing moving parts in CNC machining. It is frequently preferred in the food industry as it is suitable for contact with food. The average tensile strength of PET material is 70 MPa.
Where Is It Used?
PEI (Polyetherimide) is one of the plastics with the highest mechanical strength and abrasion resistance among CNC materials. Due to its excellent hydrolysis resistance, PEI (Polyetherimide) is used as an alternative to metals in machining handles, fixtures, prostheses, medical lamps, reflectors, and medical and surgical instruments by machining. The average tensile strength of PEI material is 110 MPa.
Where Is It Used?
PTFE is a material that has superior properties due to the strong bonds between carbon and fluorine atoms in its molecular structure, is resistant to various chemicals, and has a wide application temperature range (between -250 and +250 degrees celsius) and is suitable for CNC machining. The average tensile strength of PTFE material is 28 MPa.
Where Is It Used?
Like other manufacturing technologies, CNC machining has a wide range of materials. Each material in this range has advantages and disadvantages. We hope that this article has helped you select plastics used in manufacturing with CNC machining. If you have any questions, you can reach us by mail or or contact us via the live help button on the site.
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