Blog Menu

How to Design for Additive Manufacturing

April 22, 2017

Filed under: 3D printing,additive manufacturing,CAD/CAM/CAE,event,manufacturing — Terry Wohlers @ 08:40

It is critical for organizations to take a number of factors into account when considering the use of 3D printing for part manufacturing. Among the most important is design for additive manufacturing (DfAM). It can make the difference between success and failure. DfAM focuses on methods and special software that are unique to AM processes, such as the digital consolidation of many parts into one. This can result in significant savings in manufacturing processes, part numbers, material, weight, assembly, labor, inventory, and certification paperwork.

Wohlers Associates is partnering with Materialise to offer a three-day course on DfAM. Materialise is an industry-leading provider of 3D printing software and services. The course is May 31 – June 2, 2017 at the Materialise headquarters location in Leuven, Belgium. Wohlers Associates has twice offered a similar course on DfAM for NASA Marshall Space Flight Center, which received high marks for its effectiveness.

The upcoming course will provide expert instruction on methods of DfAM. It will include topology optimization, a technique of letting mathematics decide where to place material to optimize the strength-to-weight ratio. It can result in organic and “bionic” structures that reduce material and weight by up to 60%, while preserving strength. The following example is a hydraulic manifold for an Airbus A380 spoiler, a wing device that slows or causes an airplane to descend. The version on the left is a conventionally-machined manifold. The one on the right was redesigned using methods of DfAM and produced by AM. It flew on the A380 in March 2017. The AM version reduced weight by 55%—a significant benefit in aircraft manufacturing.

Participants will gain valuable hands-on experience by designing parts using CAD and special software tools for additive manufacturing. Some of the designs will be built on industrial AM equipment at Materialise so that attendees can evaluate the results. 3D scanning for custom product development will be included as an exercise that was popular among NASA engineers.

Associate consultant Olaf Diegel, PhD, will serve as the lead instructor. His rare combination of experience with both conventional design and manufacturing and DfAM makes him one of very few people capable of leading quality DfAM instruction and hands-on learning. Olaf has created more than 80 commercial products and is an engaging instructor, making him ideal for the course. The people at NASA had nothing but great things to say about him.

Click here for details on the course.

22nd Annual Wohlers Report

April 8, 2017

Filed under: 3D printing,additive manufacturing,CAD/CAM/CAE,manufacturing — Terry Wohlers @ 16:08

I’m happy to announce this week’s publication of Wohlers Report 2017. I sure wish that after so many years, it would become easier. It does not, mostly because of all the change and new developments in additive manufacturing and 3D printing. The annual effort is still very much related to the technology, but over time, it becomes as much or more about people. Our international network of friends, associates, and business contacts is what makes the report possible. We believe it is the largest and most developed network of its kind.

Our team is responsible for producing what I believe is the best edition of the report in more than two decades of publishing it. Associate consultants and principal authors Ian Campbell, Olaf Diegel, and Joseph Kowen carried much of the weight. With already very demanding schedules, each of them knew what needed to be done and delivered. In my view, they exceeded the standard of quality that customers and readers of the report have come to expect. They are real pros and it is a privilege to work with each of them.

Associate authors Dave Bourell and Ismail Fidan also played key roles. Year after year, they have contributed in ways that may not be fully appreciated by some. Both stepped up their involvement this year and I could not be happier with their efforts. Jenny van Rensburg, most recently at Central University of Technology, with continued involvement in the Rapid Product Development Association of South Africa, served as editor and proof reader. Thank you, Jenny, for all of the hard work.

I’m also very appreciative of executive assistant Julie Whitney for handling the details associated with the orders we receive, not to mention almost everything else in the office. Also, I want to thank my wife, Diane, for handling the accounting, and for tolerating me during a challenging time. Without them, the business would not be what it is today. A special thanks to Craig Van Wechel for his outstanding graphics design work year after year, including the cover pictured above, and to Jason Norris for his contribution to our web pages. Thanks to Dan Silva, our IT guy, for his expert support.

And finally, my sincere thanks to the 76 co-authors and contributors in 31 countries that wrote important sections of the report. I appreciate everyone that played a part in producing and delivering Wohlers Report 2017. In just four days of sales, it has been sent to customers in 24 countries on four continents around the world.

South Africa

November 6, 2016

Filed under: 3D printing,additive manufacturing,manufacturing,review — Terry Wohlers @ 14:10

I spent last week in Vanderbijlpark, South Africa, at RAPDASA 2016. It was the 17th annual conference and exhibition of the Rapid Product Development Association of South Africa. I’ve been lucky enough to attend all 17 of them. Like fine wine, the event continues to improve with age, and this one was the best, thanks to organizer and host Vaal University of Technology. VUT’s Science and Technology Park, the venue for the event, completes more than 1,000 industrial projects annually with machines and facilities that rival the very best in the world.

On Monday, a few of us visited a company that VUT is working with it. The company produces cast impellers for large industrial compressors. VUT is using Voxeljet additive manufacturing technology to produce sand molds and cores for the impellers. It is not yet into production with the process, but it is expected to cut the cost in half, saving R2 million ($147,000) per casting. What’s more, the delivery will improve dramatically from an excruciating 9-12 months to just one month. The impellers spin at 3,000 rpm and operate in a harsh environment. Company management is ecstatic about what the technology will do for it.

cast-impellers

Much of South Africa’s work began many years ago at the Centre for Rapid Prototyping and Manufacturing (CRPM) at Central University of Technology. Today, CRPM is extremely active, with more than 600 commercial projects annually. The group is running a wide range of industrial machines, including several metal AM systems that are at work building high-end parts used in an array of industries. One area of focus is around medical devices and implants. Earlier this year, CRPM received ISO certification, which shows that the people, processes, and work at CUT are among the best you’ll find anywhere.

A platinum project was launched recently with Lonmin, one of the world’s largest producers of the precious metal. I had the privilege of meeting and having dinner with several managers from the company. The effort is serious, although early in its development. The largest market for platinum, by far, is catalytic converters, followed by jewelry as a distant second. Time will tell whether the company can use AM to create entirely new markets for this special material, but it looks like the people are going into it with a lot of enthusiasm and determination.

What do these and other developments in South Africa have in common? Professor Deon de Beer. He began his work in AM at CUT where he helped launch the CRPM. He then went to VUT to establish the Science and Technology Park, which is mostly focused on AM. He’s now at North-West University, but has continued strong ties with CUT and VUT. His humble and somewhat quiet demeanor will fool you because he’s like a spark plug. He ignites an avalanche of activity wherever he goes and brings out the very best of people that surrounds him. Without Deon and his inspiration, AM progress would be VERY different in the country.

South Africa is home to many Idea 2 Product (I2P) labs, with more than 25 operating worldwide. They consist of facilities full of equipment for hands-on learning of CAD, 3D printing, and other design and manufacturing technology. The I2P labs were also a brainchild of Deon de Beer. With him and a growing number of colleagues and others, South Africa has grown to become a leader in additive manufacturing. The adoption of the technology is not as deep and widespread as it is in the U.S. and parts of Europe, but the work is just as advanced and impressive. I credit de Beer and the formation of RAPDASA (both the association and annual event) for the on-going ideas, programs, strategy, and education that are provided country-wide.

Proto Labs

October 8, 2016

Filed under: 3D printing,additive manufacturing,event,manufacturing — Terry Wohlers @ 16:30

Yesterday, Proto Labs celebrated the grand opening of its new 7,154 sq meter (77,000 sq ft) 3D printing facility in Cary, North Carolina, located at the west edge of Raleigh. Proto Labs is best known for quick turn injection molding and CNC machining, with headquarters in Maple Plain, Minnesota. The company entered the 3D printing business when it acquired FineLine Prototyping of North Carolina in April 2014. FineLine, headed by Rob Connelly, had a strong reputation for quality over a period of many years. Whenever I would hear something about FineLine, it was positive.

Connelly told me that the new site is running 48 stereolithography, 10 laser sintering, and 13 metal powder bed fusion machines. With its Germany and Finland sites, Proto Labs is operating 121 industrial 3D printing systems and growing. This represents a tremendous amount of prototyping and manufacturing capacity and is now one of the largest in the world.

proto-labs

Vicki Holt, CEO of Proto Labs since 2014, and Connelly generously gave me a personal tour on Thursday after I arrived into Raleigh. I received a second tour yesterday as part of the grand opening. As expected, I was impressed by the organization and sheer number of machines and jobs running through the facility. The company’s software for scheduling and tracking jobs, produced entirely in-house, is at the core of the operation. Large monitors in many places graphically show new and existing jobs that are making their way through the system. On average, about 275 customer projects are quoted daily for 3D printing. The site’s 150 employees handle everything from customer inquiries to scheduling jobs and shipping. For a premium, customers can obtain parts that are produced and shipped the same day.

Holt explained to me that the company’s “sweet spot” is its very quick turn around. Proto Labs is not competing on cost, but rather on consistently delivering high quality parts in the shortest amount of time possible. As a chemist and veteran in polymers and manufacturing, she knows what it takes to make customers happy. From 1979 to 2013, Holt held various positions at Monsanto, Solutia (a Monsanto spin-off), PPG Industries, Spartech Corp. (owned by PolyOne), and other companies. Holt and Connelly’s attention to detail, and that of their employees, coupled with their strengths in interacting with people, play a big role in attracting and keeping customers. Congrats to Proto Labs for its new and very impressive facility.

RØDE Microphones

August 15, 2016

Two of our consultants and I have had the privilege of visiting RØDE Microphones of Sydney, Australia. RØDE is a manufacturer of world-class microphone products for studio recording, performances, video broadcasts, and live interviews. It also manufactures microphones for presenters (lavalier and button mics) and smart phones. Over the past nearly two years, we have worked with RØDE and learned a great deal about the company and its products. Peter Freedman, managing director and chief executive, has given permission to disclose and discuss our relationship publicly.

RØDE hires some of the best people in Australia and other parts of the world. The company has offices in Seattle, Los Angeles, New York, and Hong Kong. Most of the Australian employees we’ve met are young, bright, and energetic. Freedman is the driver of new products, is constantly pushing the limits, and is the heart and soul of the company. RØDE is running $30 million in precision equipment, including a considerable number of new machines that were installed since we’ve started working together. Freedman seeks to be among the best of the best in the design and manufacturing of microphones. And, it shows by the company’s strong growth in recent years.

rode

I feel lucky to be able to work with great companies such as RØDE and people like Freedman and his team. He always has a can-do attitude and is constantly looking for new and better ways for product development and manufacturing. Over our 29 years in business, I have worked with a few people and organizations that find reasons why you cannot do something and serve as obstacles to progress. Fortunately, most of the people that we’ve encountered have the right spirit and outlook. Engineering consultant, futurist, and friend Joel Orr once said, “Success breeds success.” I could not agree more, and RØDE is a company that is producing a lot of it.

GE’s New AM Center

August 1, 2016

Filed under: 3D printing,additive manufacturing,manufacturing,review — Terry Wohlers @ 09:45

In April 2016, GE opened its new Center for Additive Technology Advancement (CATA), located near Pittsburgh, Pennsylvania. The 11,613-sq meter (125,000-sq ft) facility was designed to drive innovation and adoption of additive manufacturing across the company’s major businesses. They include Aviation, Energy Connections, Healthcare, Oil & Gas, Power, Renewable Energy, Transportation, and Current, powered by GE. CATA houses multiple AM machines from EOS, SLM Solutions, Stratasys, and ExOne. They are complimented by many CNC machining centers, EDM, heat treatment chambers, and other equipment. Space is available that would essentially double the number of machines and processes at the facility.

I toured CATA last Thursday and found it to be jaw-dropping impressive. It will almost guarantee an acceleration of knowledge and understanding of AM for production applications within the company. Having spent time with GE employees from several businesses over the years, I can say without reservation that many have solid AM experience. Even so, company management would be first to admit that the opportunity to grow and expand expertise across the 305,000-employee corporation is vast. CATA will help the company get there more quickly. Work at the facility is focused on mid technology readiness levels (i.e., TRL 4-7).

cata

GE advanced its position in AM when it acquired Morris Technologies, and its sister company, Rapid Quality Manufacturing, in November 2012. Greg Morris, then CEO and owner of the company, is the leader of Additive Technologies at GE Aviation. In 2013, GE Aviation announced that it had developed a 3D-printed fuel nozzle for its new LEAP engine. The attention received by the nozzle, which is now in production, has been an inspiration to countless organizations worldwide. Airbus was the first to receive LEAP engines, each with 19 nozzles, in April 2016 for the A320neo aircraft.

GE is making a big investment in additive manufacturing. However, it has shown few new designs since the public announcement of the fuel nozzle program. In my view, it is time for the company to show another advanced and exciting design for AM to serve as further inspiration inside and outside the company. It would make a bold statement and show the company’s leadership in the adoption and advancement of AM technology.

CATA is located about an hour from America Makes, which is the National Additive Manufacturing Innovation Institute in Youngstown, Ohio. Other key organizations close to CATA are Alcoa, ATI, Carpenter Technology, ExOne, Lincoln Electric, and the National Center for Defense Manufacturing and Machining. Universities include Carnegie Mellon, Case Western Reserve, Pennsylvania State, University of Pittsburgh, and Youngstown State. These organizations were a factor in choosing the location for CATA, a $40-million facility that signals how important AM has become at GE. The world-class facility will likely serve as a model for other large corporations globally.

SME’s RAPID 2016

May 21, 2016

I attended this week’s RAPID 2016 in Orlando, Florida. As usual, the conference and exposition were excellent. An estimated 5,190 attended the event, compared to 4,512 last year. Exhibit space increased to 4,153 sq meters (44,700 sq ft), up from 2,903 sq meters (31,250 sq ft) last year. The following are a few highlights of the event:

● HP introduced and showed its Jet Fusion 3200 and 4200 3D printers for the first time publicly. The machines are capable of addressing 340 million voxels per second in thermoplastic materials, such as PA12. They are 10 times faster and operate at half the cost of competitive systems, according to HP. The systems are mostly open, which means they support third-party materials at competitive prices.

heart

● Renishaw showed its new RenAM 500M machine that produces metal parts. The engineering is impressive. Meanwhile, 3D Systems displayed its new ProX DMP 320 machine for producing metal parts. It is based on technology developed by Belgium-based LayerWise, which was acquired by 3D Systems in 2014.

● Xjet of Israel introduced its NanoParticle Jetting technology. It uses inkjet printing to produce parts in stainless steel and silver. The parts are small, but the feature detail is good.

● Event organizer SME hosted a fashion show that featured entirely new 3D-printed designs. Many were impressive. I have now attended five fashion shows that highlight 3D-printed products and it’s remarkable how far the designs have advanced in a few years.

fashion-show

Congrats to SME for another great event, which continues to improve year after year. With increasing applications of additive manufacturing and 3D printing for final part production, the event has the opportunity to grow much larger in the future.

RAPID 2017 will be held May 8-11 in Pittsburgh, Pennsylvania. Add it to your calendar and plan to attend.

Last Week’s Euromold 2015

September 27, 2015

The 22nd annual Euromold event was held last week in Düsseldorf, Germany. Other than a few companies missing from the exhibition floor, it could not have gone better. More than 450 exhibitors from 33 countries showed their latest products and services. More than one-third of them were from the additive manufacturing and 3D printing space, giving visitors a lot to see and learn. A fashion show on Friday featured models with stunning 3D-printed accessories.

fashion
Large crowd in awe by the work shown at the Euromold fashion show

This year’s Euromold conference program was expanded to three days, with the support of USA-based SME. Jeff Kowalski, senior vice president and chief technology officer at Autodesk energized a packed room at the opening keynote. His comments were inspiring, and people were discussing them days after his presentation. Kowalski said that quality and reliability are holding back 3D printing. He also explained how we are entering the “imagination age,” but it will require completely new software capabilities to help propel the industry forward. His fresh and forward-thinking ideas gave hope to those who feel that CAD software currently hinders their ability to unlock the full potential of 3D printing.

euromold
Left: Jeff Kowalski of Autodesk. Right: Lively panel session on 3D printing software tools and data with Wilfried Vancraen of Materialise, Scott White of HP, Chris Romes of Autodesk, Emmett Lalish of Microsoft, and session chair Tim Caffrey of Wohlers Associates

Dr. Jules Poukens, a cranio-maxillofacial surgeon, was keynote speaker the second day of the conference. He shared video footage of his team implanting a cranial plate, as well as the world’s first complete mandible (jaw) replacement. Both were custom-designed and 3D-printed in titanium. The full room of people were amazed by this work.

On the final day, Stephen Nigro of HP took center stage as keynote speaker. Nigro is senior vice president at HP and responsible for company’s printing business, which is valued at more than $20 billion per year and involves tens of thousands of employees. On November 1, 2015, he becomes president of HP’s new 3D printing business. Similar to the previous two days, the room was completely packed, with people lining the walls and queued in the doorways. Nigro said the 2D printing business is $230 billion annually, but 3D printing has the potential to exceed it in size. I was flattered when he used Wohlers Associates’ data to illustrate his point. If 3D printing penetrates just 5% of the global manufacturing economy, it will surpass 2D printing by nearly three times.

The three-day conference concluded with an outstanding keynote by Jason Dunn of Made In Space. The company successfully designed, produced, and placed the first 3D printer on the International Space Station. The excellence of Dunn’s information, along with that of the other speakers and panelists, coupled with the number and quality of people in attendance, were, by far, the best in 17 years of running the conference. Thanks to everyone in attendance, and to the teams at DEMAT and SME, for their involvement. We look forward to Euromold 2016, again in Düsseldorf, which is a great place to spend a few days. Please add December 6–9, 2016 to your calendar. I look forward to seeing you there!

HP’s Stephen Nigro

September 12, 2015

Filed under: 3D printing,additive manufacturing,future,manufacturing — Terry Wohlers @ 11:38

Stephen Nigro is senior vice president of PPS Imaging and Printing at HP. He has worldwide responsibility for the company’s printing business, which includes HP InkJet, HP LaserJet, and HP Graphics. This business is roughly $20 billion per year and involves tens of thousands of employees. One can easily conclude that Nigro is very important to HP.

nigro
Stephen Nigro

It was announced last week that Nigro will focus entirely on 3D printing on November 1, 2015. This news was first reported in an article by Fortune. In my opinion, this is very big news for the company and 3D printing industry. The announcement speaks volumes about the importance of HP Multi Jet Fusion technology and how the company believes it will develop in the future.

Dion Weisler, CEO of HP Inc. (beginning November 1), has stated more than once that the 3D printing industry has not solved the major problems of speed, quality, and cost. HP hopes to address these problems with Nigro’s help. He will continue to report to Weisler as the company expands into 3D printing. “Over the next 5-10 years, I think [3D printing] will be a really big core part of our business,” Weisler stated recently. Nigro will be a key to making it happen.

Update: After the above was originally published, Nigro was named president of HP 3D Printing.

3D Printing in Australia

June 21, 2015

Filed under: 3D printing,additive manufacturing,event,manufacturing — Terry Wohlers @ 07:20

Last month, the Australian government announced the funding of a new program that could give 3D printing and additive manufacturing (AM) a boost in the country. On May 26, the Honorable Ian Macfarlane, Australia’s Minister for Industry and Science, announced the Innovative Manufacturing Cooperative Research Center (IMCRC). Much of the program is expected to center on AM and related methods and technologies. The focus on AM may have been partly inspired by America Makes, coupled with the investments and alliances associated with the U.S. initiative.

The IMCRC is a collaboration of 14 manufacturing companies, 16 universities, and CSIRO, which is Australia’s top federal agency for scientific research. Four industry bodies will help recruit more than 300 additional small and medium-sized enterprises to serve as “portal partners.” As part of the program launch, the Commonwealth is providing A$40 million (US$31 million). An additional A$210 million (US$163 million) is expected in cash and in-kind contributions from industry, research institutes, and state governments, bringing the total investment to A$250 million (US$194 million).

The announcement lingered for about nine months, so many people welcomed the long-awaited news. Senior consultant Tim Caffrey and I were in Australia when the announcement was made, with the IMCRC being the center of attention. We believe that it will indeed provide a much-needed lift to advanced manufacturing in the country, but as the saying goes, “the devil is in the details.” It will be interesting to observe how Australia sorts through the maze of challenges associated with coordinating so many people, organizations, and agendas. As with America Makes and other national efforts, the challenge and opportunity is to make a difference, and that’s easier said than done.

The day before the announcement, CSIRO officially launched its new and impressive Lab 22. Tim and I were present to participate in the festivities and meet many of the talented researchers and scientists at CSIRO. Lab 22 was established as center of excellence for organizations wanting to explore metal AM, so it welcomes participation by organizations of all types.

voxeljet
Lab 22’s Voxeljet VX1000 installation

Equipment in the new lab includes an Arcam A1 electron beam melting machine, a Concept Laser M2 laser-based machine, and a Voxeljet VX1000 machine for producing sand casting molds and cores. The lab was established as a center of excellence for organizations wanting to explore metal AM, so it welcomes participation by organizations of all types. CSIRO also has an Optomec LENS MR-7 directed energy deposition machine and a cold spray plasma additive process.

Australia is establishing a strong foundation in AM. The adoption of the technology in the private sector may not be as great as it is in some advanced countries, but the pieces are coming together for it to close the gap. The Melbourne area, alone, may well have the highest mix of metal AM systems in the world (in an area of this size), with nine direct metal AM systems. Among them are machines from Arcam, Concept Laser, EOS, Optomec, SLM Solutions, and Trumpf. The Concept Laser Xline 1000R at Monash University, and two Trumpf TruLaser 7040 machines, one each at Monash and RMIT University’s Advance Manufacturing Precinct, are very large, both in size and investment.

Next Page »