137:
66:
Some advantages of cold heading a part over using a CNC lathe or Swiss screw machine include reduced part cost both through production speed (60-400 parts per minute) and the minimal scrap generated from a cold headed part. Also, because the part is formed rather than cut, the grain flow stays intact
54:
An important consideration in heading is the tendency for the wire to buckle if its unsupported length to diameter ratio is too high. This ratio usually is limited to less than 3:1 but with appropriate dies, it can be higher.
62:
manufacturing you will see one die two blow up to five die six blow and beyond. Multi-die headers allow for more complex parts to be formed as part of one process due to the above limitations of diameter ratio reductions.
174:
84:
167:
198:
43:
workpiece, which means the final product is almost finished although it can sometimes create the final product less
160:
193:
136:
90:
144:
40:
187:
111:
48:
36:
20:
32:
28:
59:
44:
24:
58:
There are a variety of cold heading machines but typically for
35:
process. It is often performed in the cold state, resulting in
148:
67:and creates a much stronger part for its size.
168:
8:
175:
161:
76:
7:
133:
131:
39:. This process typically produces a
14:
86:HEADING HINTS: ABOUT COLD HEADING
135:
143:This metalworking article is a
89:, February 2004, archived from
23:process which incorporates the
1:
147:. You can help Knowledge by
215:
130:
199:Metalworking stubs
156:
155:
206:
177:
170:
163:
139:
132:
125:
123:
122:
121:
113:Why Cold Heading
108:
102:
100:
99:
98:
81:
214:
213:
209:
208:
207:
205:
204:
203:
184:
183:
182:
181:
129:
128:
119:
117:
110:
109:
105:
96:
94:
83:
82:
78:
73:
12:
11:
5:
212:
210:
202:
201:
196:
186:
185:
180:
179:
172:
165:
157:
154:
153:
140:
127:
126:
103:
75:
74:
72:
69:
41:near net shape
13:
10:
9:
6:
4:
3:
2:
211:
200:
197:
195:
194:Metal forming
192:
191:
189:
178:
173:
171:
166:
164:
159:
158:
152:
150:
146:
141:
138:
134:
116:, August 2011
115:
114:
107:
104:
93:on 2004-05-04
92:
88:
87:
80:
77:
70:
68:
64:
61:
56:
52:
50:
49:heat treating
46:
42:
38:
34:
30:
26:
22:
18:
149:expanding it
142:
118:, retrieved
112:
106:
95:, retrieved
91:the original
85:
79:
65:
57:
53:
37:cold working
21:metalworking
16:
15:
188:Categories
120:2014-08-13
97:2009-05-24
71:References
33:upsetting
29:extruding
60:fastener
45:plating
25:forging
17:Heading
19:is a
145:stub
31:and
47:or
190::
51:.
27:,
176:e
169:t
162:v
151:.
124:.
101:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
