Solved A billet that is 75 mm long and 25 mm in diameter is - Chegg
A billet that is 75 mm long and 25 mm in diameter is to be extruded in a direct extrusion process with extrusion ratio r,-4.0. The extrudate (extruded product) has a round cross- section. The die angle is 90°. The workpiece alloy has a strength coefficient of 415 MPa, and a strain hardening exponent of O.18.
Solved The extruder head in a fused-deposition modeling - Chegg
The extruder head in a fused-deposition modeling setup has a diameter of 1.25 mm (0.05 in.) and produces layers that are 0.25 mm (0.01 in.) thick. If the extruder head and polymer extrudate velocities are both 40 mm/s, estimate the production time for …
Solved 1: How long would it take to fabricate this hollow - Chegg
The square base has a side length of 10cm and the pyramid is 10cm tall. The interior cavity is also a pyramid with a square base of 9cm sides and a height of 9cm . Assume the extrudate of ABS and support material both have a cross-section of 0.6mm wide by .4mm tall and is dispensed at a rate of 4.5cm/sec.
Solved P13.15 (SI units) The flow rate of a | Chegg.com
P13.15 (SI units) The flow rate of a polyvinylchloride extrudate is 6800 cm3/min. The die opening is a tube with outside diameter = 4.5 cm and inside diameter = 3.8 cm. The die swell ratio = 1.18. The price of PVC is $2.00/kg. Its specific gravity is listed in Table 8.1.
material, 1.75 mm filament diameter, and 10 - Chegg.com
Question: ?ABS material, 1.75 mm filament diameter, and 10 mm length, convective heat transfer coefficient ( h ) is K ), heater block temperature is 240°C, target extrudate temperature is 200°C. What will be the temperature (in °C ) atthe wall of the filament after 5 s and what will the mass flow rate? [10 ...
Solved Hopper Plastic pellets Heaters Polymer melt Screw - Chegg
Hopper Plastic pellets Heaters Polymer melt Screw Breaker plate Barrel Die Extrudate 4 + 1. Use the figure above to answer the following questions: a. There are three features (sections of the extruder) that are not labeled in the above image. List them and describe their functions. (6 …
Solved Question 5 12 pts A billet 100 mm long and 30 mm in
The extrudate has a round cross section. The die angle (half angle) = 30°. The work metal has a strength coefficient 520 MPa, and strain hardening exponent 0.17. Use the Johnson formula with a = 0.8 and b = 1.2 to estimate extrusion strain. Determine the following: 1. Diameter of the extrudate 2. Butt volume 3. Actual extrudate length 4.
Solved 2) The extrudate shapes are: 6- A 250 mm wide strip - Chegg
2) The extrudate shapes are: 6- A 250 mm wide strip 20 mm thick is fed through a rolling mill with two powered rolls each of radius 200 mm. The work thickness is to be reduced to 17 mm in one pass. The material flow curve is defined by K 275 MPa and n 0.15 a.
Solved 13.17 (Sl units) The cost rate of an extruder is - Chegg
When the extrudate hardens, it is cut into 3.0-meter sections. Setup time is 70 min. Material cost per meter length of extrudate = $1.36/m. The cross-sectional area of the extrusion die opening is 2.9 cm2. Die swell ratio = 1.17. The die cost was $32,000, and it will produce a total of 300,000 m of extrudate during its life.
Solved You make a product, | Chegg.com
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