Selective Laser Sintering (SLS) was developed at the University of Texas in Austin, by Carl Deckard and colleagues. The technology was patented in 1989 and was originally sold by DTM Corporation. DTM was acquired by 3D Systems in 2001. The basic concept of SLS is similar to that of SLA. It uses a moving laser beam to trace and selectively sinter powdered polymer and/or metal composite materials into successive cross-sections of a three-dimensional part. As in all rapid prototyping processes, the parts are built upon a platform that adjusts in height equal to the thickness of the layer being built. Additional powder is deposited on top of each solidified layer and sintered. This powder is rolled onto the platform from a bin before building the layer. The powder is maintained at an elevated temperature so that it fuses easily upon exposure to the laser. Unlike SLA, special support structures are not required because the excess powder in each layer acts as a support to the part being built. With the metal composite material, the SLS process solidifies a polymer binder material around steel powder (100 micron diameter) one slice at a time, forming the part. The part is then placed in a furnace, at temperatures in excess of 900 °C, where the polymer binder is burned off and the part is infiltrated with bronze to improve its density. The burn-off and infiltration procedures typically take about one day, after which secondary machining and finishing is performed. Recent improvements in accuracy and resolution, and reduction in stair-stepping, have minimized the need for secondary machining and finishing.
The main material for the SLS are the metal part or Nylon material which are commonly used in the industry or consumer fields. contact us to do the business, we are your best partner from beginning to end to give you the best service.
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The product name specification material steel factory/origin price (yuan/ton) is higher than the previous month's high line of last month by Φ6.5mm Q235 Angang Steel 5020 0 0 670 High Line Φ8mm Q335 Beitai 5020 0 0 670 High Line Φ6.5mm Q335 Jiujiang 5020 0 0 620 Rebar Φ12mm HRB335 Beitai 5020 0 0 620 Rebar Φ12mm HRB335 Linggang 5020 0 0 620 Rebar Φ16-25mm HRB335 New Fused Steel 4900 0 0 600 Rebar Φ16-25mm HRB335 Beitai 4900 0 0 600 Rebar Φ16-25mm HRB335 Linggang 4900 0 0 600 Hot rolled coil 2.0mm*1250*C Q235 Angang (1700) 6050 0 0 1000 Hot rolled coil 3.0mm*1500*C Q235 Angang (1780) 5650 0 0 800 Hot rolled coil 3.0mm*1250 *C Q235 Angang (1700) 5650 0 0 800 Hot rolled coil 5.5mm*1500*C Q235 Angang (1700) 5400 0 0 750 Hot rolled coil 1.8mm*1250 Q335 Hot rolled steel 6350 0 0 1200 Hot rolled coil 2.5mm*1250 Q435 Tong Steel 5850 0 0 900 Hot Roll 3.5mm*1500 Q136 Tong Steel 5700 0 0 1050 Hot Roll 5.5mm*1500 Q236 Tong Steel 5400 0 0 750 Hot Roll 7.5mm*1500 Q336 Tong Steel 5400 0 0 750 Heat Roll 9.5mm*1500 Q436 Tong Steel 5400 0 0 750 Hot Roll 9.75mm*1500 Q137 Tong Steel 5400 0 0 750 Cold Roll 1.0mm*1000*2000 Q195 Angang 6600 0 50 850 Cold Roll 1.5m m*1000*2000 Q195 Angang 6500 0 50 850 Cold rolled plate 2.0mm*1000*2000 Q195 Angang 6500 0 50 850 Cold rolled plate 3.0mm*1000*2000 Q295 Angang 6650 0 50 850 Medium plate 20mm Q235 Angang 5950 0 0 750 Puzhong Plate 20mm Q235 5950 0 0 750 Puzhong Plate 30-40mm Q345 Angang 6000 0 0 800 Low Alloy Plate 20mm Q445 Angang 6100 0 0 600 Plate 3.5mm*1250*6000 Q235 Angang 5650 0 150 800 Plate 4.5mm*1250*6000 Q235 Angang 5650 0 150 800 Pattern Plate 5.5mm*1250*6000 Q235 Angang 5650 0 150 800 Pattern Plate 6.5mm*1250*6000 Q235 Angang 5650 0 150 800 Seamless Pipe 57mm*3.5 20# Stone 6800 0 1250 1250 Seamless pipe 108mm*4.5 20# Flintstone 6700 0 1300 1300 Seamless pipe 113mm*4.5 20# Flintstone 6550 0 1150 1150 Seamless pipe 159mm*6 20# Flintstone 6450 0 1150 1150 Seamless pipe 76mm*5 20# Angang 6500 0 1200 1200 seamless pipe 108*4.5 20# Angang 6500 0 900 900 I-beam 12# Q235 A-steel 5300 0 0 750 I-beam 25# Q235 East 4454 0 0 900 I-beam 26# Q235 East 4 5650 0 0 1050 Channel Steel 16# Q235 A Steel 5150 0 0 850 Channel Steel 25# Q235 Large Rolling/ 0 0 0 Angle Steel 50*5mm Q235 Steel 5200 0 0 650 Steel Angle 100*10mm Q235 Steel 530000750