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fab-dat/fab-product-dat/fab-molding-dat/fab-molding-dat.md
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@@ -10,3 +10,33 @@
10 10
- 简易铝模注塑 Soft Tool Injection Molding
11 11
- 小批量注塑 Low-volume Injection Molding
12 12
- 原型注塑 Prototype Injection Molding
13
+
14
+
15
+Gypsum mold（石膏模具）
16
+
17
+## PU molding
18
+
19
+![](2026-01-01-13-43-46.png)
20
+
21
+PU 8012 A+B
22
+
23
+## silicon molds
24
+
25
+![](2026-01-01-13-47-14.png)
26
+
27
+![](2026-01-01-13-46-55.png)
28
+
29
+![](2026-01-01-13-45-34.png)
30
+
31
+
32
+![](2026-01-01-13-45-53.png)
33
+
34
+
35
+
36
+## ref
37
+
38
+- [[fab-product-dat]]
39
+
40
+- [[fab-molding]] - [[fab]]
41
+
42
+
fab-dat/fab-product-dat/fab-product-dat.md
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@@ -14,7 +14,7 @@
14 14
15 15
- [[fab-3d-print-dat]] == [[plastic-dat]]
16 16
17
-- [[molding-dat]]
17
+- [[fab-molding-dat]]
18 18
19 19
| Process | Startup Cost | Unit Cost | Appearance | Strength | Recommendation |
20 20
| ---------------- | ------------ | --------- | ---------- | -------- | -------------- |
fab-dat/fab-product-dat/fab-sheet-metal-dat/fab-sheet-metal-dat.md
... ...
@@ -4,6 +4,9 @@
4 4
5 5
- [[rivet-dat]] - [[rivet-nut-dat]]
6 6
7
+
8
+
9
+
7 10
## CAD sheet metal
8 11
9 12
start - thicken
materials-dat/metal-dat/metal-dat.md
... ...
@@ -4,7 +4,11 @@
4 4
5 5
- [[Shaft-dat]]
6 6
7
-- [[sheet-metal-fab-dat]] - [[fab-sheet-metal-dat]]
7
+- [[fab-sheet-metal-dat]]
8
+
9
+- [[rivet-dat]] - [[nut-dat]]
10
+
11
+
8 12
9 13
## metal connection
10 14
... ...
@@ -41,11 +45,11 @@ Useful tips
41 45
Best strategy: reduce dust generation at the cutting stage.
42 46
43 47
Recommended cutting methods (from least to most dust):
44
-| Cutting method | Dust amount | Notes |
45
-| --------------------- | ----------- | ----- |
46
-| Cold saw / band saw | ⭐ lowest | Produces chips/strips rather than fine dust |
47
-| Hand saw (hacksaw) | ⭐⭐ low | Low airborne dust; slower |
48
-| Angle grinder cutting | ❌ high | High speed creates fine powder |
48
+| Cutting method | Dust amount | Notes |
49
+| ------------------------ | ------------ | ----------------------------------------------------------- |
50
+| Cold saw / band saw | ⭐ lowest | Produces chips/strips rather than fine dust |
51
+| Hand saw (hacksaw) | ⭐⭐ low | Low airborne dust; slower |
52
+| Angle grinder cutting | ❌ high | High speed creates fine powder |
49 53
| Cutting wheel / abrasive | ❌❌ very high | Produces fine dust and sparks; worst for airborne particles |
50 54
51 55
Practical controls
... ...
@@ -57,12 +61,12 @@ Practical controls
57 61
58 62
## Cutting: Ease, Tool Wear, and Chips
59 63
60
-| Material | Relative Cutting Ease | Tool Wear | Dust / Chips Produced | Heat Generation | Notes |
61
-| ---------------- | --------------------- | --------- | ------------------------ | --------------- | ----- |
62
-| Aluminum alloy | ⭐⭐⭐⭐⭐ (Very easy) | Low | Chips (few fine dust) | Low–Medium | Soft; can clog blades at high RPM |
63
-| Brass (黄铜) | ⭐⭐⭐⭐☆ (Easy) | Low–Medium| Clean chips | Medium | Free-cutting; stable |
64
-| Copper (紫铜) | ⭐⭐⭐☆☆ (Medium) | Medium | Long, sticky chips | Medium–High | Ductile; tends to smear |
65
-| Stainless steel | ⭐⭐☆☆☆ (Hard) | High | Fine chips + dust | High | Work-hardens; use low speed and coolant |
64
+| Material | Relative Cutting Ease | Tool Wear | Dust / Chips Produced | Heat Generation | Notes |
65
+| --------------- | --------------------- | ---------- | --------------------- | --------------- | --------------------------------------- |
66
+| Aluminum alloy | ⭐⭐⭐⭐⭐ (Very easy) | Low | Chips (few fine dust) | Low–Medium | Soft; can clog blades at high RPM |
67
+| Brass (黄铜) | ⭐⭐⭐⭐☆ (Easy) | Low–Medium | Clean chips | Medium | Free-cutting; stable |
68
+| Copper (紫铜) | ⭐⭐⭐☆☆ (Medium) | Medium | Long, sticky chips | Medium–High | Ductile; tends to smear |
69
+| Stainless steel | ⭐⭐☆☆☆ (Hard) | High | Fine chips + dust | High | Work-hardens; use low speed and coolant |
66 70
67 71
Notes
68 72
- Match blade type and speed to material.
mechanics-dat/mechanical-structure-dat/Rivet-dat/Rivet-dat.md
... ...
@@ -1,6 +1,63 @@
1 1
2 2
# Rivet-dat
3 3
4
+- [[rivet-nut-dat]]
5
+
6
+
7
+能从一侧安装、通用性最强 → 铆钉螺母
8
+
9
+能用压床、追求稳定与精度 → 压铆螺母
10
+
11
+| 项目 | 铆钉螺母 | 压铆螺母 |
12
+| ---------- | --------------------------- | ---------------------------- |
13
+| 英文 | Rivet Nut / Blind Rivet Nut | PEM Nut / Self-Clinching Nut |
14
+| 固定原理 | 拉铆变形夹紧板材 | 齿纹压入材料冷流锁死 |
15
+| 是否“盲装” | ✅ 是（单面操作） | ❌ 否（需双面受力） |
16
+| 是否可拆 | ❌ 不可拆 | ❌ 不可拆 |
17
+
18
+
19
+三、安装方式差异（非常关键）
20
+🔹 铆钉螺母（Rivet Nut）
21
+
22
+安装过程
23
+
24
+钻孔
25
+
26
+插入螺母
27
+
28
+用铆枪拉芯 → 后端鼓包
29
+
30
+特点
31
+
32
+从一侧即可完成
33
+
34
+不需要压床
35
+
36
+现场安装友好
37
+
38
+📌 类似：抽芯铆钉 + 螺纹
39
+
40
+🔹 压铆螺母（PEM Nut）
41
+
42
+安装过程
43
+
44
+冲孔（精确尺寸）
45
+
46
+放入螺母
47
+
48
+压床直接压入
49
+
50
+特点
51
+
52
+需要上下两侧受力
53
+
54
+依赖材料“冷流”
55
+
56
+精度和稳定性更好
57
+
58
+
59
+
60
+
4 61
5 62
6 63
## Semi-Tubular Rivet (Tubular Rivet)
mechanics-dat/mechanical-structure-dat/Rivet-dat/rivet-nut-dat/2026-01-01-13-40-10.png
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mechanics-dat/mechanical-structure-dat/Rivet-dat/rivet-nut-dat/rivet-nut-dat.md
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@@ -18,7 +18,13 @@ BSO-M3-6
18 18
4x M4 BSO-M4-6 背面安装
19 19
20 20
21
+## pull tool
22
+
23
+![](2026-01-01-13-40-10.png)
24
+
21 25
22 26
## ref
23 27
24
-- [[rivet-dat]]
... ...
\ No newline at end of file
0
+- [[rivet-dat]] - [[rivet]] - [[mechanical-structure]]
1
+
2
+- [[rivet-nut]]
... ...
\ No newline at end of file