Metal Casting
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Transcript of Metal Casting
![Page 1: Metal Casting](https://reader033.fdocuments.net/reader033/viewer/2022061112/54569d8db1af9f7b498b4bee/html5/thumbnails/1.jpg)
TUTORIAL PROSMAN
Manto lagi sedih gangerti prosman…
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METAL CASTING
![Page 3: Metal Casting](https://reader033.fdocuments.net/reader033/viewer/2022061112/54569d8db1af9f7b498b4bee/html5/thumbnails/3.jpg)
PROSES-PROSES
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sOLIDIFICATION
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1. Cara pembuatan cetakan (permanen & habis pakai)
2. Bentuk cetakan untuk membentuk produk tertentu
3. Defect pada metal casting4. Perhitungan time solidification5. Rancangan Riser
PElajari
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PERhitungan
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SOAL!!!A cylindrical riser must be designed for a sand-casting mold. The casting itself is a steel rectangular plate wiith dimensions 7.5 cm x 12.5 cm x 2.0 cm. Previous observastions have indicated that the total solidification time (TTS) for this casting = 1.6min. The cylinder for the riser will have a diameter-to-height ratio = 1.0. Determine the dimensions of the riser so that its TTS = 2.0 min. Solusi (hal 209)
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SOAL!!!(10.25 hal 213) A cylindrical riser with diameter to length ratio = 1.0 is to be designed for a sand casting mold. The casting geometry is illustrated in Figure P10.25, in which the units are inches. If the mold constant = 19.5 min/in2 in Chvorinov’s rule, determine the dimensions of the riser so that the riser will take 0.5 min longer to freeze than the casting itself.
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SOAL!!!SPESIFIKASI ALTERNATOR PULLEYData-data yang dimiliki part ini:Mass properties of Alternator Pulley-G15Output coordinate SystemDensity = 0.01 grams per cubic millimeterMass = 2268.16 gramsVolume = 315022.15 cubic millimeters = 315.02215 cm3
Surface area = 101323.03 square millimeters = 1013.2303 cm2
Solidification shrinkage for gray cast iron : 18.% Diketahui Cm = 3.26 min/cm2
(nilai ini merupakan asumsi)
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Pertanyaan:a. Hitunglah TST (Total Solidfication Time) aktual dari part inib. Misalkan dirancang suatu riser yang memiliki suatu TST sebesar 60 s, rancanglah riser untuk part ini (D, h, V)c. Misalkan dirancang Sprue yang memiliki panjang = h=15 cm dan memiliki diameter sprue =D= 1 cm, hitunglah volume sprue dan luas penampang sprued. Hitung Kecepatan penuangan (v)e. Hitung Debit penuangan (Q) f. Hitung Waktu penuangan (MFT)
SOAL!!!
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PLASTIC
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PELAJARI
Proses-Proses pembentukan plastik Extrution Injection Sheet/Film Blow and rotaional molding Thermoforming
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EKSTRUSI
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BENTUK DIE (EKSTRUSI)
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CABLE COATING
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SHEET AND FILM
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PROSES-PROSES LAINNYA
ADA DI BUKU (^.^)……
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METAL FORMINGPELAJARI1. Teknik-teknik metal forming2. Produk-produk hasil metal forming3. Biasanya diberikan suatu gambar produk lau
ditanyakan bagaimana cara pembentukannya (bisa lebih dari 1 proses)
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SHEET METALPELAJARI1. Proses-proses sheet metalworking2. Hasil-hasil proses metalworking3. Cacat pada metalworking4. Biasanya diberikan suatu gambar produk lau
ditanyakan bagaimana cara pembentukannya (bisa lebih dari 1 proses)
5.PERHITUNGAN!!
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SOAL!!!(20.9 hal 478)Bending. A bending operation is to be performed on 5.00mm thick cold-rolled steel. The part drawing is given in Figure P20.9. 1. Determine the blank size
required2. Bending force if die opening =
30
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(20.18 hal 479)Drawing. A cup is to be drawn in a deep drawing operation. The height of the cup is 75mm, and its inside diameter = 100mm. The sheet-metal thickness = 2mm. If the blank diameter = 225 mm, determine
(a) drawing ratio, (b) reduction,(c) thickness-to-diameter ratio. (d) Does the operation seem feasible?
SOAL!!!
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SELESAI
Manto senyum karena udah bisa prosman abis tutorial…
Manto berkata, “selain bisa ujian saya juga bisa jadi kadiv akpro loh abis ikut
tutorial prosman!!”
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Semangat
YA hOOjian Prosmannya!!!