Đề thi cuối học kỳ II năm học 2019-2020 môn Công nghệ kim loại - ĐH Sư phạm Kỹ thuật

TRUING DH SIS PHAM KY THU AT TPHCM
KHOA CG KHl CHE TAO MAY
BO MON HAN VA CONG NGHE KIM LOAI

Chu ky giam thi 1

K?

Chu ky giam thi 2

CB chain thi thir rihat

CB cham thi thu hai

So cau dung:

So cau dung:

Diem va chir ky

Diem va chir ky

DE THI CUOI HOC KY II NH 2019-2020
Mon: Cong nghe kim loai

Ma mon hoc: METE330126
De so/Ma de: 9A De thi co 20 cau, 6 trang (3 to).
Thai gian: 75 phut.
Khong diroc phep su dung tai lieu.
Sinh vien lam true tiep tren de thi va nop lai de thi
(khong tach roi cac to giay)

Ho va te n :........................................................................
Ma so SV:
...............................................
So T T :........................ Phong th i:..................................

CAU HOI
1. So sanh iru va nhiroc diem cua viec tao phoi bang phirong phap phirong phap gia
cong ap lye so voi viec tao phoi bang cac phirong phap Due. (0.5d)

Tao phoi bang
phirong phap
Gia cong ap lire
so voi phnong
phap tao phoi
bang phirong
phap due

2.

iTu

Nhiroc

7

So sanh iru nhuoc diem va pham vi irng dung cua gia cong nong so voi gia cong
nguoi (0.5d)_____ _____________________ ________ _____________________________
Nhiroc
Pham vi

Phirong phap
Uu

Gia cong nong

Gia cong nguoi

3.

Cac phirong phap dune sir dung d! tao phoi cho san xuat co khi

4.

Can cir d l lira chon phoi (phirong phap tao p h o i) de gia cong co khi la gi?


/

5.

Dau ngot bo tri o’:

a. O cho co thanh mong
c. Ci vi tri cao nhat trong khuon
6.

b. Cl vi tri giua cua long khuon
d. Cung phia vdi he thong rot

Kich thude mau due bang

a. Kich thude ehi tiet may + lupng du gia cong + do co kim loai.
b. Kich thude vat due
c. Kich thude chi tiet may + do co kim loai + kich thude loi.
d. Kich thude chi tiet may + kich thude loi.
7.

8.

Kich thurdc vat due bang:

a. Kich thude chi tiet may + lupng du gia cong + do co kim loai.
b. Kich thude chi tiet may - lupng du gia cong - dung sai due - do co kim ldai.
c. Kich thude chi tiet may - lupng du gia cong + do co kim loai + kich thude loi.
d. Kich thude chi
tiet may + lupng du gia cong
+ dung sai due.
*7
>

Khi chon chuan tho phai chu y hai yeu cau:

a. Phan phoi du lupng du cho cac be mat gia cong.
b. Bao dam do chinh xac can thiet ve vj tri tuong quan giua cac be mat khong gia cong
va cac be mat dupe gia cong
c. Ca 2 y tren deu dung
d. Ca 2 y tren deu sai
9.

Lupng du gia cong phu thuoc vao

a. Kich thude chi tiet, phuong phap gia cong
b. Vi tri be mat chi tiet trong long khuon, phuong phap due
c. Kich thude chi tiet, phuong phap gia cong
d. Nhiet do chay cua kim loai,
10. Goi z la khe hd giua chay va coi, z phu thuoc vao? (0.25d)

11. Cho chi tiet sau tren khuon dap lien hop, biet vat lieu thep CT31, he so K = l.l
(0.5d)
a. Tinh luc dap

b. Trong nguyen cong tren san pham nao la dap cat,
san pham nao la dot 16.

1

«r-3>

12. Cho cac chi tilt nhu hinh ve hinh 1, lupng du gia cong mat tren 4mm, mqt dudi, mat ben
3mm. Dung sai due :±1.5, Goc thoat khuon 1°, Loai hinh san xudt: hang khdi. Ve ban ve
khuon Due cat cho chi tilt 1 (true tilp len ban ve cho sin), bilt vat lieu GX 15-32, (2d)

2/6


5* ^
\

13. Ve hinh dang MAU DUC BANG GO ngay tren ban ve chi tiet hinh 2 dirai day:
Cho biet san xuat hang loat. (0.5d)

Hinh 2: ban ve cho cau 13
14. Chi tiet Ul hinh 3 diro-c tao phoi b5ng phurong phap ren, b iit vat lieu thep C45. Yeu
cau (Id)

3/6


Hinh 3: Ban ve cau 14
a. Ve ban ve vat ren cho chi tiet hinh 3 biet liryng dir gia cong cho trircrc la 2
mm (ve tryc tiep tren hinh)
b. Gia sir ren ty do tir phoi ren hinh tru. Nguyen cong phu hyp de tao vat ren
nhir hinh la...................................................................................................................
15. Chi tiet blank holder trong khuon dap co vai tro gi? (0.5d)

Hinh 4: hinh ve cau 15
16. Neu cac vi tri han (ong co dinh) khi thyc hien moi han (han het chu vi ong) nhur
hinh ve (0.5d)

WELD

Nguon anh: upwweld.org
17. Khi han ho quang tay ngvoi thy phai thyc hien cac chuyen dong nao, cac chuyen
dong do co vai tro gi? (0.5d)

18. Ve so1do cac phirong phap noi day khi han ho quang tay? Cac phirong phap noi
day do dtryc sfr dung khi nao? (0.5d)

4/6

19. Cho bieu <36 nhir hinh sau va co 2 phuong phap due: due khuon kim loai (die casting) va
due khuon cat (sand casting). Duong A, B bieu dien cho phuong phap nao? Giai thich y
nghTa bieu do tren. (0.5d)
A:.......................................................................................................................................
B:.......................................................................................................................................
Giai thich:........................................................................................................................

5/6


20. Tim diem chira hop ly o’ cac ket cau due sau (ve ket cau de xuat cho hop ly) (0.5d)

Ghi chu: Can bo coi thi khong ducrc giai thick de thi.
Noi dung ki£m tra

Chuan dau ra cua hoc phan (ve kien thvc)
G l.l

Giai thich dugc cac thuat ngu ky thuat trong nganh che tao phoi.

Cau 1-10, 19

Trinh bay dugc quy trinh cong nghe san xuat san pham bang Cau 11
G1.2 phucmg phap due, ren, dap, can, keo, han
^ ^ 7

r

i

r

f

Thiet ke dugc cac san pham due don gian, thiet ke dugc ban ve Cau 12,13,20
G2.1 mau, thiet lap dugc quy trinh cong nghe lam khuon due,
G2.2
G2.3

Thiet ke dugc cac san pham ren dap co ban,

Cau 14, 15

Thiet lap dugc quy trinh cong nghe han ho quang

Cau 17

Co ky nang thiet lap cac thong so han phu hgp nham dat dugc yeu Cau 16,18
cau cua cac moi han co ban d vi tri han bang, tinh toan dugc vat tu
G4.1 can dung cho san xuat due, tinh toan dugc vat tu can dung cho san
xuat ren, dap kim loai
Ngay 9 thang 7 nam 2020

ThS. Nguyen Thanh Tan

6/6


»

TRUONG DH Slf PHAM KY THUAT TPHCM
KHOA CO KHl CHE TAO MAY
BO MON HAN VA CONG NGHE KIM LOAI

Chu ky giam thi 1
m

BE THI CUOI HOC KY II NH 2019-2020
Mon: Cong nghe kim loai

Ma mon hoc: METE330126
De so/Ma de: 9B De thi co 20 cau, 6 trang (3 to).
Thai gian: 75 phut.
Khong dune phep sir dung tai lieu.

Chu ky gianythi 2

y

f
CBcM m tM thvrnM t CB cham thi thu hai
So cau dung:
So cau dung:

Sinh vien lam tru-c tiep tren de thi va nop lai de thi
(khong tach roi cac to* giay)

Diem va chir ky

Ho va te n :........................................................................

Ma sd S V :........................................................................
So TT: ........................ Phong th i:..................................

Ir

Diem va chu ky

•

CAU HOI
1. Cho chi tiet sau tren khuon dap lien hnp, biet vat lieu thep CT31, he so K = l.l
(0.5d)
a. Tinh Inc dap

b. Trong nguyen cong tren san pham nao la dap cat,
san pham nao la dot Id.
**

A i

1A

Cho cac chi tiet nhu hinh
cong mat tren 4mm, mat diroi, mat ben 3mm. Dung sai
due :±1.5, Goc thoat khuon 1°, Loai hinh san xuat: hang khoi. Ve ban ve khuon Due cat
cho chi tiet 1 (true tiep len ban ve cho san), biet vat lieu GX 15-32, (2d)
2.

1/6

«

H'mh 1: Ban ve danh cho can 2
3. Ve hinh dang MAU DUC BANG GO ngay tren ban ve chi tiet hinh 2 diroi day:
Cho biet san xuat hang loat. (0.5d)

Hinh 2: ban ve cho cau 3
4.

Chi tiet hinh 3 diroc tao phoi bang phtro’ng phap ren, biet vat lieu thep C45. Yeu
cau (Id)

r

5.

r

a. Ve ban ve vat ren cho chi tiet hinh 3 biet Iirong dir gia cong cho trirdc la 2
mm (ve true tiep tren hinh)
b. Gia sir ren tu* do tir phoi ren hinh tru. Nguyen cong phu hop de tao vat ren
nhir hinh la...................................................................................................................
Chi tiet blank holder (hinh 4) trong khuon dap co vai tro gi? (0.5d)

Hinh 4: hinh ve cau 5
6.

Neu cac vi tri han (ong co dinh) khi thne hien moi han (han het chu vi ong) nhir
hinh ve (0.5d)

2/6


WELD

7.

Nguon anh: upwweld.org

^

*>

2

Khi han ho quang tay ngiroi tho phai thirc hien cac chuyen dong nao, cac chuyen
dong do co vai tro gi? (0.5d)

>

X

A

r

8. Ve so do cac phuong phap noi day khi han ho quang tay? Cac phoong phap noi
day do dooc su* dung khi nao? (0.5d)

9. Cho bieu do nhu hinh sau va co 2 phuong phap due: due khuon kim loai (die casting) va
due khuon cat (sand casting). Ducmg A, B bieu dien cho phuong phap nao? Giai thich y
nghia bieu do tren. (0.5d)
A:.......................................................................................................................................
B:........................................................................................... .
3/6


<

Giai thich:

10. Tim diem chira hap ly o’ cac ket cau due sau (ve ket cau de xuat cho hop ly) (0.5d)

11. So sanh u-u va nhugc diem cua viec tao phoi bang phuxmg phap phaoug phap gia
cong ap lu*c so voi viec tao phoi bang cac phirong phap Due. (0.5d)
4/6


Tao phoi bang
phuong phap
Gia cong ap luc
so voi phuong
phap tao phoi
bang phuong
phap due

Nhiroc

Uu

7

12. So sanh iru nhiroc diem va pham vi irng dung cua gia cong nong so voi gia cong
Uguoi (0.5d)_____ _____________________ _____________________ ________________
Pham vi
Phuong phap
Uu
Nhiroc

Gia cong nong

Gia cong nguoi

7

r

13. Cac phirong phap diroc sir dung de tao phoi cho san xuat co khi

14. Can cir de lira chon phoi (phirong phap tao p h o i) de gia cong co khi la gi?

15. Dau ngot bo tri o’:

a. O cho co thanh mong
c. O vi tri cao nhat trong khuon

b. (5 vi tri giua cua long khuon
d. Cung phia voi he thong rot

16. Kich thuoc mau due bang

*

a.Kich thuoc chi tiet may + luong du gia cong + do co kim loai.
b.Kich thuoc vat due
c. Kich thuoc chi tiet may + do co kim loai + kich thuoc loi.
d. Kich thuoc chi tiet may + kich thuoc loi.

17. Kich thiro’c vat due b§ng:

-

a.Kich thuoc chi tiet may + luong du gia cong + do co kim loai.
. b.Kich thuoc chi tiet may - luong du gia cong - dung sai due - do co kim loai.
c. Kich thuoc chi tiet may - luong du gia cong + do co kim loai + kich thuoc loi.
d. Kich thuoc chi tiet may + luong du gia cong + dung sai due.
cue .


18. Khi chon chuan tho phai chu y hai yeu cau:

a. Phan phoi du lirgng du cho cac be mat gia cong.
b. Bao dam do chinh xac can thiet ve vi tri tuong quan gitra cac be mat khong gia cong
va cac be mat dugc gia cong
c. Ca 2 y tren deu dung
d. Ca 2 y tren deu sai
19. L u o n g dir gia cong phu thuoc vao

a. Kich thuoc chi tiet, phuong phap gia cong

b. Vi tri be mat chi tiet trong long khuon, phuong phap due
c. Kich thuoc chi tiet, phuong phap gia cong
d. Nhiet do chay cua kim loai,
20. Goi z la khe ho giira chay va coi, z phu thuoc vao? (0.253)

Ghi chit: Can bo coi thi khong ducrc giai thick tfe thi.
Chuan dau ra cua hoc phan (ve kien thu-c)
G l.l

Noi dungTdem tra

Giai thich dugc cac thuat ngu ky thuat trong nganh che tao phoi.

Cau 11-20,9

Trinh bay dugc quy trinh cong nghe san xuat san pham bang Cau 1
G1.2 phuong phap due, ren, dap, can, keo, han
r

G2.1
G2.2
G2.3

G4.1

r

t

r

r

Thiet ke dugc cac san pham due don gian, thiet ke dugc ban ve Cau 2,3,10
mau, thiet lap dugc quy trinh cong nghe lam khuon due,
Thiet ke dugc cac san pham ren dap ca ban,

Cau 4, 5

Thiet lap dugc quy trinh cong nghe han h6 quang

Cau 7

Co ky nang thiet lap cac thong so han phu hgp nham dat dugc yeu Cau 6,8
cau cua cac moi han co ban b vi tri han bang, tinh toan dugc vat tu
can dung cho san xuat due, tinh toan dugc vat tu can dung cho san
xuat ren, dap kim loai
Ngay 9 thang 7 nam 2020
Thong qua bo mon

6/6