Featured Research

from universities, journals, and other organizations

Smallest puzzle in the world

Date:
July 15, 2013
Source:
Karlsruhe Institute of Technology
Summary:
Researchers have created three puzzle pieces of less than 1 mm in size each that may be put together to make what is likely the smallest puzzle in the world. For production, researchers used a new process to manufacture microstructured casting molds. Inexpensive series production is combined with highest precision on the microscale to produce such things as components for watches, engines, or medical products. Now, large series of smallest parts can be injection-molded with the highest accuracy. 

Puzzle composed of three plastic microparts produced by the LIGA2.X process.
Credit: Jochen Heneka, KIT

Researchers have created three puzzle pieces of less than 1 mm in size each that may be put together to make what is likely the smallest puzzle in the world. For production, researchers used LIGA2.X, a new process to manufacture microstructured casting molds at KIT's ANKA synchrotron source. Inexpensive series production is combined with highest precision on the microscale to produce e.g. components in watches, engines, or medical products. Now, large series of smallest parts can be injection-molded with the highest accuracy.

The LIGA process can be used to produce microstructures from various metals, ceramics, or plastics. The acronym stands for lithography, electrodeposition, and molding. LIGA allows to produce structures with high aspect ratios (ratio between height and smallest width) and opens up various molding options. The process developed in the 1980s in Karlsruhe is subject to constant further development. Now, KIT scientists have conceived a new modification of the LIGA process. .

The LIGA2.X process allows for an inexpensive series production of plastic microparts of less than 0.5 mm3 in volume. So far, a substrate plate linking all molded parts has been required for demolding. LIGA2.X does without this layer and allows for direct and separate injection molding of such microparts. Difficult time- and cost-consuming separation of the parts from the substrate plate is no longer needed. "LIGA2.X does not only reduce costs, but also ensures higher degrees of freedom in the arrangement of structured mold nests in multiple molds," explains Jochen Heneka, scientist at the Institute of Microstructure Technology (IMT) and Institute for Applied Materials -- Material Process Technology (IAM-WPT) of KIT.

The injection molding tools applied in LIGA2.X consist of three plates to demold the parts from the molds and four LIGA molds that can be installed in a tool plate and exchanged. By moving the first and second molding plate away from each other, the part is released from the LIGA mold. With the help of the third plate, the gate is removed properly. To produce the microstructured LIGA molds with the help of X-ray deep-etch lithography, the scientists used the ANKA synchrotron source on the Campus North of KIT.

Karlsruhe Institute of Technology (KIT) is a public corporation according to the legislation of the state of Baden-Wόrttemberg. It fulfills the mission of a university and the mission of a national research center of the Helmholtz Association. Research activities focus on energy, the natural and built environment as well as on society and technology and cover the whole range extending from fundamental aspects to application. With about 9000 employees, including nearly 6000 staff members in the science and education sector, and 24000 students, KIT is one of the biggest research and education institutions in Europe. Work of KIT is based on the knowledge triangle of research, teaching, and innovation.


Story Source:

The above story is based on materials provided by Karlsruhe Institute of Technology. Note: Materials may be edited for content and length.


Cite This Page:

Karlsruhe Institute of Technology. "Smallest puzzle in the world." ScienceDaily. ScienceDaily, 15 July 2013. <www.sciencedaily.com/releases/2013/07/130715070304.htm>.
Karlsruhe Institute of Technology. (2013, July 15). Smallest puzzle in the world. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2013/07/130715070304.htm
Karlsruhe Institute of Technology. "Smallest puzzle in the world." ScienceDaily. www.sciencedaily.com/releases/2013/07/130715070304.htm (accessed September 30, 2014).

Share This



More Matter & Energy News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Argentina's Tax Evaders Detected, Hunted Down by Drones

Argentina's Tax Evaders Detected, Hunted Down by Drones

AFP (Sep. 30, 2014) — Argentina doesn't only have Lionel Messi the footballer, it has now also acquired "Mesi" the drone system which monitors undeclared mansions, swimming pools and soy fields to curb tax evasion in the country. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Do Video Games Trump Brain Training For Cognitive Boosts?

Do Video Games Trump Brain Training For Cognitive Boosts?

Newsy (Sep. 29, 2014) — More and more studies are showing positive benefits to playing video games, but the jury is still out on brain training programs. Video provided by Newsy
Powered by NewsLook.com
CERN Celebrates 60 Years of Science

CERN Celebrates 60 Years of Science

Reuters - Business Video Online (Sep. 29, 2014) — CERN, the European Organisation for Nuclear Research, celebrates 60 years of bringing nations together through science. As Joanna Partridge reports from inside the famous science centre it's also planning to turn the Large Hadron Collider particle accelerator back on after an upgrade. Video provided by Reuters
Powered by NewsLook.com
This 'Invisibility Cloak' Is Simpler Than Most

This 'Invisibility Cloak' Is Simpler Than Most

Newsy (Sep. 28, 2014) — Researchers from the University of Rochester have created a type of invisibility cloak with simple focal lenses. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins