Towards bi-metallic injection molds by directed energy deposition

An Overview of Additive Manufacturing of Titanium Components by Directed Energy Deposition: Microstructure and Mechanical Properties

The directed energy deposition (DED) process can be employed to build net shape components or prototypes starting from powder or wires, through a layer-by-layer process. This process provides an opportunity to fabricate complex shaped and functionally graded parts that can be utilized in different engineering applications. DED uses a laser as a focused heat source to melt the in-situ delivered ...

A Study of Deposition Coatings Formed by Electroformed Metallic Materials

Major joining methods of dental casting metal include brazing and laser welding. However, brazing cannot be applied for electroformed metals since heat treatment could affect the fit, and, therefore, laser welding is used for such metals. New methods of joining metals that do not impair the characteristics of electroformed metals should be developed. When new coating is performed on the surface...

Riboflavin Production by Molds.

Injection Compression Molding of Replica Molds for Nanoimprint Lithography

As a breakthrough in the cost and durability of molds for nanoimprint lithography (NIL), replica molds are fabricated by injection compression molding (ICM). ICM is commonly used for optical disks such as DVDs or Blu-ray disks and is also a practical fabrication method for nanostructures. In this paper, I successfully demonstrated the fabrication of cycloolefin polymer replica molds with struct...

Self-administration of metallic mercury by intravenous injection.

sigmoid regions and occasionally in the caecum. It results from pressure necrosis of the colonic wall from impacted faeces. Constipation is the pre-eminent symptom in all cases and straining at stool the precipitating event. Drug-induced faecal impaction is becoming more prevalent and is not uncommon in opiate addicts. Both faecal impaction and perforation have been recently reported in renal t...