Research Projects

Defect-free laser welding of ferrous and non-ferrous alloys

Since hybrid vehicles’ (HV) usage (2 million cars on road today, by 2020 it will hit as 4 million) is becoming more popular today, transportation industries have focused their thrust to make HV as much as energy efficient with cost effectiveness. HV i...

Diode laser wear resistance cladding

The high-value parts (gears, pistons, turbine blades, etc) that are working in huge abrasive and corrosive environments have exponentially lost their surface and functional properties (resistance to wear, corrosion, heat, fatigue, erosion, etc.), costing...

Laser-aided manufacturing of biodegradable functionally-gradient porous implants

Bone gives structural support to the human body which is made of multiphase matrix such as collagen (30%) and hydroxyapatite (70%). Hard bone-tissues (hip, knee, shoulder, elbow) need to be replaced or repaired due to aging, accidents, sports, and war...

Laser-induced surface texturing for structural metals/ceramics/polymers

Surface texture influences tribological and optical properties, and aesthetic features. To gain a fractal surface texture (macro to nano scale) on metals/ceramics/polymers is almost impossible by conventional means (flame, chemical). Today, laser (variable...

Localized laser hardening

Each year several billion dollars have been spent in aerospace, automotive, defence, nuclear, and energy industries for replacing functionally high-value parts due to loss of its functional properties. In this, localized laser hardening (LLH) is a promising...

Optimal laser scanning path for larger structures case hardness uniformity of steels

When larger-sized industrial parts need to be locally hardened by a laser, due to laser focal spot limitation, number of laser scanning is essential to cover the larger surface. In this case, optimal scanning path is very crucial to obtain case hardness...