Cau hoi 3. ( 1 diem) De chi tiet con lSn co do cung cao, do mai mon cao, tdng tu6i thp lam viec thi ta phai lam them cong viec gi d l hoan tit san phlm? Chuan dau ra cua hoc phan Ni dung kiem tra TG 1.21: C6 kh§ nng lap quy trinh chi tao phoi ca khl. Cau 1 G 2.3: C6 kha nng lap quy trinh gia cong ca khl 1 chi Cau 2 tilt dan gian. G l.l: Co kha ndng giai thich cac khai niem, thuat ngu: Cau 3 HSy lap quy trinh tien tho va tien tinh m |t tru ngoai phoi 080 xudng chi tilt 075 cua chi tiet con lan nhu hinh sau?
Trang 1T H A N H P H O H O C H I M I N H
K H O A N G O A I N G t T
L O f P A N H V A N K Y T H U A T
M o n : C f f K i r i D a i C m m g
M a m o n h o : G M E N 1 4 2
D 6 s o / M a d e : 0 1 B e t h i c o 2 t r a n g
T h o r i g i a n : 9 0 p h u t
S i n h v i e n k h o n g s i r d u g t a i l i e u
H a t r i n h b a q u y t r i n h c o n g n g h e l a m k h o n b u a 5 d e d u e p h o i c o n l a n n h h i n h v e s u ?
V a t l i e u : t h e p C 4
K i 6 m t r a k h o n t r e n
K i l m t r a k h o n d u o i
K i l m t r a h e t h o n g r o t
T i 6 n h a n r a p k h o n v a r o t k i m l o a i
H i n h 1
T r a n g : 1
Trang 2H a l a p q u y t r i n h t i e n t h o v a t i e n t i n h m a t t r u n g a i p h o i 0 8 0 x u o n g c h i t i l t 0 7 5 c u a c h i
t i l t c o n l a n n h h i n h s a u ?
1 L S p h o i
B i r o ' c 3 : T i e n m a t t r u n g o a i d > 8 0
- N a i l o n g m a m c a p , q u a c h i a
k o n g u o c h i e u k i m d i n g h o
- K e p h o i e a h m a m c a p
4 m m
- S i l t c h a t c h a u m a m c a p b a n g
e c h q u a c h i a k h o m a m c a p
t h e c h i l u k i m d o n g h o d ! k e p
c h a t p h o i
- L a c h i a k h o m a m c a p d e
t r e n k h a d u g c u
2 L a p d a t i e n m a t t r u
n g a i
4 T i e n t h o
- L a p d a t i e n m a t t r u n g a i l e n
b o g a d a a b a n x e d a n g n g
- T h a n d a v u o n g g o v e r i
d e m g t a r n
- M u i d a c a b a n g t a r n p h o i /
t a r n t r u e c h i n h / t a r n m a m c a p
- S i e t o c d l k e p c h a t d a
- T i e n t h o : + n = 3 0 v o n g / p h t + S i = 0 , 5 m m / v d g + t i = 2 m m ( c h i l u s a u c a t )
- T i e n t i n h + n = 3 0 v o n g / p h t + S 2 = 0 , 3 m m / v d g
+ 1 2 = - = 0 5 m m
2
- T i e n t h o :
P h o i ® 8 m m + n = 3 0 v o n g / p h t + S i = 0 , 5 m m / v o n g + t i = 2 m m ( c h i e u s a u c a t )
So dao bing mui ch6ng tim
5 D i r a d a v a v i t r i
g i a c o n g t i e n t h o
- T a t r a i q u a b a n x a d a d o ( c h u y l n d o n g O x )
- T a p h a q u a b a n x e d a
n g n g ( c h u y l n d o n g O y )
- D u a d a v a v i t r i c h a m m a t
Trang 3- X o y v o l a n g b a n x e d a d o
t a o c h y n d o n g t i n h t i e n
S ~ , 5 m m / p h t
- K h i g n d e n v i t r i c u o i k h i d a t
c h i e u d a i L = 4 m m v a t a t m a
k i e m t r a T a d u g d u a n g k i n h
O 7 6 m m
6 T i e n t i n h + P h o i 0 7 6 m m
+ S = 0 , 3 m m / p h t
Q u a v o l a n g b a n x e d a n g n g /1
5 v c h d l d i e u c h i n h c h i l u s a u
c t t2= 0 , 5 m m ( ■
: J
V
-1
7 B a t m a c h o p h o i
q a ( c h y n d o n g
c h i n h )
- Q u a n g u g c h i e u k i m d o n g
h o
- n = 3 0 v o n g / p h t
8 G a t c d g a t , d u a d a i
o 2 n u a v a v j t r i h a p
d l t a o c h u y l n d o n g t i n h
t i l n d o t u d o n g S i =
0 , 3 m m / p h t ( c h y n
d o n g p h )
- C h a c h o d e n k h i m u i d a t i e n
t ^ , d u g 1 k o n g L ~ 4 0 m m
- G a t c d g a t , d u a d a i 6 c 2 n u a
v o v i t r i l y
9 T i t m a , k i e m t r a B o d u a n g k i n h d a t i e n d a t
0 5 m m l a c o n g v i e c t i e n t i n h
h o n t a t
v i e c t h i t a p h a i l a m t h e m c o n g v i e c g i d l h o n t i t s a n p h i m ?
+ T o i c h i t i l t c o n l a n d a t d o c u g 5 5 H R C
+ R a m d i e u c h i n h d o c u g v 5 0 H R C t h e y e u c d
Trang 4TRU'CfNG DAI HQC SlT PHAM KY THUAT
THANH P H 6 H 6 CHI MINH
KHOANGOAINGU*
LOOP ANH VAN KY THUAT
DE THI C U 6 l KY HQC KY II NAM HQC 2020
Mon: Cor Khf Dai Cirong
M5 m6n hoc: GMEN124025
Be s6/M5 de: 01 Be thi c6 .2 trang.
Thai gian: 90 phut.
Sinh vien khong sir dung tai lieu.
Cau hoi 1 ( 4 diem)
Hay trinh bay quy trinh cong nghe lam khuon budc 5 d6 due phoi con 15n nhu hinh ve sau? Vat lieu: thep C45
Hinh 1
Cau hoi 2 ( 5 diem)
HSy lap quy trinh tien tho va tien tinh m |t tru ngoai phoi 08 0 xudng chi tilt 07 5 cua chi tiet con lan nhu hinh sau?
Hinh 2
Cau hoi 3 ( 1 diem) De chi tiet con lSn co do cung cao, do mai mon cao, tdng tu6i thp lam
viec thi ta phai lam them cong viec gi d l hoan tit san phlm?
S6 hieu: BM1/QT-PDBCL-RDTV Trang: 1/1
Trang 5Ghi chu: Can bg coi thi khong dupe giai thick de thi.
TG 1.21: C6 kh§ n&ng lap quy trinh chi tao phoi ca khl Cau 1
[G 2.3]: C6 kha n&ng lap quy trinh gia cong ca khl 1 chi
tilt dan gian.
Cau 2
[ G l.l]: Co kha ndng giai thich cac khai niem, thuat ngu:
chuyen mon
Cau 3
Ngay 11 thang 07 n&m 2020
S6 hieu: BM1/QT-PBBCL-RBTV T rang:1/1