During the milling process used a zinc thickness of 1 millimeter. The design is reflected in the creation of 2D file which bending procedure would  assume 3d shape of a sphere, and as such is designed as a small table lamp that had four legs, central / inner part with a hole for the possible installation of lighting and eight side portions to form a spherical shape.

During this process there has been a mistake when setting the controls in RhinoCam, where small contiguous parts were cut from the outside insted  of cutting from  inside so that the main holders were torn during this process. On the other hand, it is noted that the material behaves very well during this process, particularly for large parts, leaving a very accurate curvature  and clean forms.

At first we did design of aluminium sphere as constructive assembly of joints and folding. Design strategy was based on using the 0.3 mm thick aluminium and the EndCut Mill tool 0.3 mm in diameter. In this case one mill cut matches thickness of material, making joints possible.

As we starded to mill our material, we realized that parts designed for joints are too thin and fragile to be succesfull. Because of that we focused only on the folding of aluminium. This was done by engraving the folding lines.

We also had problems with melting of aluminum during the milling process. But we were able to cut of the melted part manually.

FORMULA:

Zinc (Zn)

MATERIAL DESCRIPTION:

Zinc  is a chemical element with symbol Zn and atomic number 30. It is an essential trace mineral present in a rock, soil, air and water. Zinc is used in alloys such as brass, nickel silver and aluminium solder. Large quantities of zinc are used to produce die-castings which are important in the automobile, electrical and hardware industries. It is also used extensively to galvanise other metals such as iron to prevent rusting. Zinc oxide is widely used in the manufacture of very many products such as paints, rubber, cosmetics, pharmaceuticals, plastics, inks, soaps, batteries, textiles and electrical equipment. Zinc sulfide is used in making luminous dials and fluorescent lights.

EXTRACTION AND REFINING PROCESS:

Roasting and sintering; electrolysis and smelting, require the prior removal of sulfur in a reaction:

BASIC PROPERTIES:

compressive strength (N/M2)

tensile strength (N/M2)                                   28

stiffness (N/M2)

density  (KG/M3)                                               7140

carbon footprint (average KGCO2E/KG)

recyclable                                                           YES

laser                                                                     YES

small laser                                                          YES

milling                                                                 YES

3d printing                                                         YES

ADVANTAGE IN THE CONTEXT OF DIGITAL FABRICATION:

ESSENTIAL role in the biological proceses of all humans, plants and animals

PROTECTION-ability to protect still from corroison

RECYCLING infinitely without loss of properties and quality

SUSTAINABLE sorce of energy systems

NON FERROUS metal that can be cut with CO2 laser

FLEXIBLE, ELASTIC, SUITABLE for shaping-3D printing

MATERIAL SUPLIERS:

Servei Estacio   http://www.serveiestacio.com/ca

PRICE:

13,5 EURO 200x1000x0,6mm

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