metal casting

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TUTORIAL PROSMAN Manto lagi sedih gangerti prosman…

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Page 1: Metal Casting

TUTORIAL PROSMAN

Manto lagi sedih gangerti prosman…

Page 2: Metal Casting

METAL CASTING

Page 3: Metal Casting

PROSES-PROSES

Page 4: Metal Casting

sOLIDIFICATION

Page 5: Metal Casting

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

Page 6: Metal Casting

PERhitungan

Page 7: Metal Casting

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)

Page 8: Metal Casting

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.

Page 9: Metal Casting

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) 

Page 10: Metal Casting

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!!!

Page 11: Metal Casting

PLASTIC

Page 12: Metal Casting

PELAJARI

Proses-Proses pembentukan plastik Extrution Injection Sheet/Film Blow and rotaional molding Thermoforming

Page 13: Metal Casting

EKSTRUSI

Page 14: Metal Casting

BENTUK DIE (EKSTRUSI)

Page 15: Metal Casting

CABLE COATING

Page 16: Metal Casting

SHEET AND FILM

Page 17: Metal Casting

PROSES-PROSES LAINNYA

ADA DI BUKU (^.^)……

Page 18: Metal Casting

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)

Page 19: Metal Casting

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!!

Page 20: Metal Casting

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

Page 21: Metal Casting

(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!!!

Page 22: Metal Casting

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!!”

Page 23: Metal Casting

Semangat

YA hOOjian Prosmannya!!!