Leggera Technologies

Thixomolding Technology

Thixomolding

Thixomolding® is a casting method where magnesium is simultaneously sheared and heated until it becomes dough-like in consistency, and then injected into a mold, creating a laminar flow front like that of plastic injection molding. The doughy consistency is created in a magnesium injection molding machine under a protective gas. The magnesium is heated to 560° to 600° C via a feed screw and external heating, and then pressed into the die. The duration of the injection process including dwell-pressure is about 0.03 seconds; the cycle time, depending on component size, is about 70 to 90 seconds.

The laminar flow front created during the Thixomolding® process ensures the production of components with more uniform material structure and lower porosity and/or cavity-free compared to die casting. Or, more simply Injection Molded Magnesium.

Thixomolding

Benefits

Light weight

Thin walls: .020” minimum (.5 mm)

Castability and stiffness

EMI-RFI shielding

High strength to weight ratio

High dimensional stability and tight tolerances

Linear tolerances: ±.001 in. (0.003 cm) for each inch of dimension

High quality surface finish

Low porosity: 50% lower than die cast

Dent resistance and good machinability

Sound and vibration dampening

Heat transfer capability

No surface sinks at wall junctions

Low draft: 0 draft possible, .5 to 2 degree is typical

Recyclability and low warpage

Environmentally friendly process

Insert molding possible

Thixomolding Process

Comprehensive Solutions from Concept to Production, Ensuring Superior Quality and Value

Leggera Technologies offers comprehensive services, guiding you from initial conception through product design, testing, and final production. We excel in designing and manufacturing high-quality products tailored to your specific needs. By leveraging innovative magnesium processes and world-class manufacturing techniques, we deliver superior value to our customers, ensuring exceptional performance and reliability in every product we create.

machine-mold

Thixomolding vs. Die Casting

vs.

Thixomolding

Thixomold

Trim & Debur

Machining - simple

Simply drilling holes might be required

Coat

Ship

Thixomolding’s better process (less heat, semi-solid, faster cycle time) & light weight (density, thinner walls, lower draft) all leads to a better, less expensive process vs die cast

Die Casting

X

Melt

Process requires liquid metal

Die Cast

X

Biscuit Trimming

Due to size of biscuits & runners

Trim & Debur

X

X-Ray

Due to higher porosity

X

Straightening

Due to process & size of biscuits & runners

Machining

Required due to draft & gage

Coat

Ship