{"id":13552,"date":"2019-07-30T11:45:41","date_gmt":"2019-07-30T10:45:41","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=13552"},"modified":"2019-07-29T19:33:04","modified_gmt":"2019-07-29T18:33:04","slug":"sustainable-3d-printing-filaments","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/sustainable-3d-printing-filaments\/","title":{"rendered":"Why sustainable 3D printing filaments are key to reducing waste"},"content":{"rendered":"\n

It has been 35 years since the first instance of what we now think of as additive manufacturing (AM), or 3D printing. Lauded for its rapid production speed and minimal waste, the process is becoming a staple of product prototyping. However, there is still room to improve the sustainability of this process, as Ben Smye explains<\/strong><\/p>\n\n\n\n

The rapid rate of production facilitated by AM is rivalled only by the rapid uptake that the technology itself has seen. Although the first form of 3D printing, stereolithography, was invented in 1984, it\u2019s only been since the mid-2000s that the technology has become widely popularised, with Google <\/p>\n\n\n\n

Trends data indicating that the term\u2019s popularity really took off around 2012.<\/p>\n\n\n\n

Today, the barrier for entry to 3D printing is relatively low. 3D printing technology is now a viable option for boutique businesses and consumers alike, while AM is used for producing everything from components in electronics to vehicle parts and even medical implants and functioning human organs.<\/p>\n\n\n\n

AM\u2019s remarkable versatility is due to the wide range of filaments that can be used. <\/p>\n\n\n\n

Although polymer products are among the most popular, materials from ceramic silicon carbide to stainless steel can also be used to produce parts, both for production and prototyping.<\/p>\n\n\n\n

It\u2019s the latter of these that is often most interesting to design engineers. With traditional subtractive manufacturing processes, physical prototyping required an excess of material and ample time. <\/p>\n\n\n\n

\"Why
Worldwide, manufacturers are slowly making their way into the world of 3D printing. It makes great promises, from speedy construction to significantly reducing offcut waste. The next step is to use environmentally friendly, extrudable, biodegradable bioplastics as the printing material, says Ben Smye, head of growth for engineering materials database Matmatch<\/figcaption><\/figure>\n\n\n\n

With 3D printing, prototypes can be completed quicker and by using only the right amount of material, making it a better use of resources.<\/p>\n\n\n\n

However, this doesn\u2019t mean that 3D printed rapid prototyping is waste free. At the end of the prototyping stage, the final prototype \u2014 as well as all unsuccessful prototypes \u2014 need to be disposed of. <\/p>\n\n\n\n

For metal powders, recycling is straightforward, but it becomes more challenging with plastic filaments \u2014 something that introduces the same waste issues as traditional plastics.<\/p>\n\n\n\n

One of the original concerns in the early years of 3D printing, particularly in relation to plastics, was that of the material\u2019s mechanical properties in comparison to traditional materials. <\/p>\n\n\n\n

Initially, many 3D printed plastics were perceived to be of lower mechanical quality than traditional plastics, and would therefore be unsuitable for certain applications, particularly in areas like automotive and aerospace.<\/p>\n\n\n\n

Although development of printable polymers in recent years has gone some way to dispelling this myth, similar concerns have typically been levelled at biodegradable plastics and biopolymers. <\/p>\n\n\n\n

So, it\u2019s understandable that some might be cautious of the quality of printable bioplastics.<\/p>\n\n\n\n

However, this doesn\u2019t need to be the case. Both printable materials and bioplastic technology has developed significantly since their respective inceptions, and today we have materials like Extrudr\u2019s GreenTEC Pro biodegradable biopolymer filaments. <\/p>\n\n\n\n

These filaments are stable, resistant to impact and temperature-resistant up to 160\u02daC, while also being completely biodegradable and FDA approved for use in food applications.<\/p>\n\n\n\n

Crucially, Extrudr\u2019s GreenTEC filaments are easier to process than some similar strength polymers, making them easier to use in the printing process. <\/p>\n\n\n\n

Collectively, these features allow design engineers to get the benefits of 3D printing \u2014 the speed of production with a good quality output \u2014 without worrying about the sustainability of their project, even on high-performance and industrial applications.<\/p>\n\n\n\n

AM and 3D printing are rapidly developing technologies that are reshaping what we conventionally think of as possible in design and fabrication. By choosing the right materials, design engineers can ensure their products make the most of this technology in a sustainable, clean way.<\/p>\n\n\n\n

Ben Smye is head of growth at 3D printing materials database Matmatch<\/a><\/strong>. <\/p>\n","protected":false},"excerpt":{"rendered":"

It has been 35 years since the first instance of what we now think of as additive manufacturing (AM), or 3D printing. Lauded for its rapid production speed and minimal waste, the process is becoming a staple of product prototyping. 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