類鑽碳膜（DLC）介紹

鑽石具有高硬度、高熱傳導係數、低膨脹係數、低摩擦系數與高 化學安定度等特性，但鑽石產量稀少、價格昂貴且加工困難，類鑽碳薄膜具有和天然鑽石相近的性質，其中包括了有高硬度、耐腐蝕性佳、表面平滑、摩擦係數小、抗磨耗性佳、生物相容性佳等，且有價格上之優勢。由於具有這些優越特性，使其在機械、電子、半導體等工業之應用日益廣泛。

類鑽碳薄膜是由SP2及SP3組成，如能將SP2晶格減少，且增加SP3晶格，類鑽碳薄膜將會很接近鑽石薄膜，然而由於在結構中含有被扭曲的 sp3 鍵結

 

孔加工精度

鉸孔和鑽孔、擴孔一樣都是由刀具本身的尺寸來保證被加工孔的尺寸的，但鉸孔的品9質要高得多。鉸孔餘量對鉸孔品質的影響很大，餘量太大，鉸刀的負荷大，切削刃很快被磨鈍，不易獲得光潔的加工表面，尺寸公差也不易保證；餘量太小，不能去掉上工序留下的刀痕，自然也就沒有改善孔加工品質的作用。一般粗鉸餘量取為0.35－0.15mm，精鉸取為0.15－0.05mm。鉸孔尺寸精度一般為IT9－IT7級，表面粗糙度Ra一般為3.2－0.8μm。

孔加工精度等級

加工方案	公差等級	表面粗度Ra（μm）	適用範圍
鑽	IT13~IT11	20	加工未淬火鋼及鑄鐵的實心毛坯，也可用於加工有色金屬（表面粗糙度稍差），孔徑<(15-20)mm
鑽-鉸	IT8-9	5.0-2.5
鑽-粗鉸-精鉸	IT7-8	2.5-1.25
鑽-擴	IT11	20-10.0	加工未淬火鋼及鑄鐵的實心毛坯，也可用於加工有色金屬（表面粗糙度稍差），但孔徑>(15-20)mm
鑽-擴-鉸	IT8-9	5.0-2.5
鑽-擴-粗鉸-精鉸	IT7	2.5-1.25
鑽-擴-機鉸-手鉸	IT6-7	0.63-0.160
鑽-（擴）-拉	IT6-7	2.5-0.160	大批大量生產（精度視）除淬火鋼外各種材料，毛坯有鑄出孔或鍛出孔
粗鏜（或擴孔）	IT11-13	20-10.0
粗鏜(粗擴)-半精鏜(精擴)	IT8-9	5.0-2.5
粗鏜(擴)-半精鏜(精擴)-精鏜(鉸)	IT7-8	2.5-1.25
粗鏜(擴)-半精鏜(精擴)-精鏜-浮動鏜刀塊精鏜	IT6-7	1.25-0.63
粗鏜(擴)-半精鏜-磨孔	IT7-8	1.25-0.32	主要用於加工淬火鋼，也可用於不淬火鋼，但不宜用於有色金屬
粗鏜(擴)-半精鏜-粗磨-精磨	IT6-7	0.32-0.160
粗鏜-半精鏜-精鏜-金剛鏜	IT6-7	0.63-0.080	主要用於精度要求較高的有色金屬加工
鑽-（擴）-粗鉸-精鉸-珩磨鑽-（擴）-拉-珩磨粗鏜-半精鏜-精鏜-珩磨	IT6-7	0.32-0.040	精度要求很高的孔
以研磨代替上述方案的珩磨	IT6以上	0.160-0.010

資料來源：網路彙整

 

BW鑽刀碳纖維與玻璃纖維材質加工測試

BW公司開發新型四刃鑽鉸孔刀具，針對碳纖維，玻璃纖維與石墨纖維複合材料加工，因特殊刀具材料與切削排屑方式，改善刀具在切割複合材料，能使刀具穩定切割無毛邊現象，排屑方式能產生顆粒粉末狀。

 

切削熱的影響

在銑削難切削材質時，會產生大量的切削熱。所以在加工時，應用充分的大風量油霧冷風槍將切削區淹沒，這對小直徑銑刀OR大直徑刀具容易實現，切削時就不可能全部淹沒，採用乾銑方式。

 

刀具在銑削鎳基合金時破損較快?

鎳系合金中鎳和鉻是兩個主要添加成分，增加鎳能增加材料韌性，加入鉻可提高材料的硬度，再加上其他成分的平衡，據此就可以預測刀具的磨損情況。加工鎳基合金，其刀具費用較高，其費用為銑削一般鋼材的5~10倍。

 

Cutter selection Part-1

Cutter selection

Only correct type and cutting edge may do a good job for milling work. Popular end mills include flat cutter, side cutter, face milling cutter, milling cutter, end mill, sawing, and milling cutter. Its characteristics is that many teeth and flutes on one milling cutter, some end mills with only two or three teeth; some cutters are with considerable numbers of teeth. Hence end mill is called as multi-teeth cutters.

There are many types of cutters and a variety of classification methods as below:

Classify by material：

1. High-speed steel cutters:for general purposes, the most widely used.
2. Carbide cutter:for high speed cutting.
3. Non-ferrous metal casting alloy cutter:suitable for heavy cutting.

Classify by the way of grinding wheel:

1. Contour cutter.
2. Type cutter.

Classify by tool installation:

1. Spindle cutter device:set cutter by use of the tool axis, which with a hole in the center of milling cutter, and used in horizontal milling machine.
2. Shank type milling cutter:cutter body with straight shank or taper shank, it needs to be fixed by a chuck or socket for installation.
3. Face Mills:This cutter is with a short cutter shaft, it needs to be settled by cutter shaft device then set on the spindle of milling machine directly for installation.

Classify by cutter structure:

1. Overall cutter:body and cutting edge made by the same material as a whole, generally adopt high-speed steel.
2. Brazed cutter:cutting blade made with carbide, the body is high carbon steel, combined by brazed joint.
3. Welding blade cutter: cutting blade made with high carbon steel or tool steel, high-speed steel, ontology Ministry both to weld joints.
4. Inlay cutter:blade screwed on the body, you can remove it to grind or replace, mostly used in face milling cutter of big diameter.

The next article will introduce cutters classified by the appearances and applications, so stay tuned!

article reference – Vocational Training Council

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

 

BW’s popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

 

HSS材質對照表

HSS材質對照表

此表以HSS材料為主，將常用的材料規格號碼、記號加以歸納、整理、分析及化學成分及機械性質的分析。

台灣	中國	日本	美國	德國
CNS	GB	JIS	ASTM	DIN
2904	9943	G4403	A600	17350
				材料號碼	記號
SKH2	W18Cr4V	SKH2	T1	1.3355	S 18-0-1
SKH3	W18Cr4V5Co5	SKH3	T4	1.3255	S 18-1-2-5
SKH4	W18Cr4V5Co8	SKH4	T5	1.3265	S 18-1-2-10
SKH10	W12Cr4V5Co5	SKH10	T15	1.3202	S 12-1-4-5
SKH51	W6Mo5Cr4V2	SKH51	M2	1.3342	S 6-5-2
SKH52	W6Mo5Cr4V3	SKH52	M3-1	1.3344	S 6-5-3
SKH53	—	SKH53	M3-2	1.3344	S 6-5-3
SKH54	—	SKH54	M4	1.3344	S 6-5-3
SKH55	W6Mo5Cr4V2Co5	SKH55	—	1.3243	S 6-5-2-5
SKH56	W6Mo5Cr4V2Co5	SKH56	M36	—	—
SKH57	—	SKH57	M41	1.3207	S 10-4-3-10
SKH58	—	SKH58	M7	—	—
SKH59	W2Mo9Cr4VCo8	SKH59	M42	1.3247	S 2-10-1-8

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以下為各種材質的化學成份及機械性質性：

• SKH2材質化學成分及機械性質表
• SKH3材質化學成分及機械性質表
• SKH4材質化學成分及機械性質表
• SKH10材質化學成分及機械性質表
• SKH51材質化學成分及機械性質表
• SKH52材質化學成分及機械性質表
• SKH53材質化學成分及機械性質表
• SKH54材質化學成分及機械性質表
• SKH55材質化學成分及機械性質表
• SKH56材質化學成分及機械性質表
• SKH57材質化學成分及機械性質表
• SKH58材質化學成分及機械性質表
• SKH59材質化學成分及機械性質表

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SKH2材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH2	W18Cr4V	SKH2	T1	S 18-0-1
化學成分(％) Chemical composition	C	0.73-0.83	0.7-0.8	0.73-0.83	0.65-0.80	0.70-0.78
	Si	≦0.4	0.2-0.4	≦0.4	0.2-0.4	≦0.45
	Mn	≦0.4	0.1-0.4	≦0.4	0.1-0.4	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	≦0.3	≦0.25	—	—
	Cr	3.8-4.5	3.8-4.4	3.8-4.5	3.75-4.50	3.8-4.4
	Mo	—	≦0.3	—	—	—
	W	17-18.7	17.5-19.0	17-18.7	17.25-18.75	17.5-18.5
	V	1.0-1.2	1.0-1.4	1.0-1.2	0.9-1.3	1.0-1.2
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦269	≦255	≦269	≦255	240-300
	焠火HRC	≧63	≧63	≧63	≧63	≧64

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SKH3材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH3	W18Cr4V5Co5	SKH3	T4	S 18-1-2-5
化學成分(％) Chemical composition	C	0.73-0.83	0.7-0.8	0.73-0.83	0.7-0.8	0.75-0.83
	Si	≦0.4	0.2-0.4	≦0.4	0.2-0.4	≦0.45
	Mn	≦0.4	0.1-0.4	≦0.4	0.1-0.4	≦0.04
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—	—
	Cr	3.8-4.5	3.75-4.50	3.8-4.5	3.75-4.50	3.8-4.5
	Mo	—	0.4-1.0	—	0.4-1.0	0.5-0.8
	W	17-19.0	17.5-19.0	17-19	17. 5-19	17-18.5
	V	0.8-1.2	0.8-1.2	0.8-1.2	0.8-1.2	1.4-1.7
	Co	—	4.25-5.75	4.5-5.5	4.25-5.75	4.5-5.5
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦269	—	≦269	≦269	240-300
	焠火HRC	≧64	—	≧63	≧63	≧64

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SKH4材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH4	W18Cr4V2Co8	SKH4	T5	S 18-1-2-10
化學成分(％) Chemical composition	C	0.73-0.83	0.75-0.85	0.73-0.83	0.75-0.85	0.72-0.80
	Si	≦0.4	0.2-0.4	≦0.4	0.2-0.4	≦0.45
	Mn	≦0.4	0.2-0.4	≦0.4	0.2-0.4	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—	—
	Cr	3.8-4.5	3.75-5.00	3.8-4.5	3.75-5.00	3.8-4.5
	Mo	—	0.50-1.25	—	0.5-1.25	0.5-4.5
	W	17-19.0	17.5-19	17.5-19.0	17.5-19	17.5-18.5
	V	1.0-1.5	1.8-2.4	1.0-1.5	1.8-2.4	1.4-1.7
	Co	9.0-11.0	7.0-9.5	9.0-11.0	7.0-9.5	9.0-10.0
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦285	≦285	≦285	≦285	240-300
	焠火HRC	≧64	≧63	≧64	≧63	≧64

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SKH10材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH10	W12Cr4V5Co5	SKH10	T15	S 12-1-4-5
化學成分(％) Chemical composition	C	1.45-1.6	1.5-1.6	1.45-1.6	1.5-1.6	1.30-1.45
	Si	≦0.45	≦0.4	≦0.45	0.15-0.40	≦0.45
	Mn	≦0.4	0.15-0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—	—
	Cr	3.8-4.5	3.75-5.00	3.8-4.5	3.75-5.00	3.8-4.5
	Mo	—	≦1.0	—	≦1.0	0.7-1.0
	W	11.5-13.5	11.75-13.00	11.5-13.5	11.75-13.00	11.5-12.5
	V	4.2-5.2	4.5-5.25	4.2-5.2	4.5-5.25	3.5-4.0
	Co	4.2-5.2	4.75-5.25	4.2-5.2	4.75-5.25	4.5-5.0
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦285	≦277	≦285	≦277	240-300
	焠火HRC	≧64	≧65	≧64	≧65	≧65

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SKH51材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH51	W6Mo5Cr4V2	SKH51	M2	S 6-5-2
化學成分(％) Chemical composition	C	0.8-0.9	0.8-0.9	0.8-0.9	078-0.88	0.86-0.94
	Si	≦0.45	0.2-0.4	≦0.45	0.20-0.45	≦0.45
	Mn	≦0.4	0.15-0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—	—
	Cr	3.8-4.5	3.8-4.4	3.8-4.5	3.75-4.50	3.8-4.5
	Mo	4.7-5.2	4.5-5.5	4.5-5.5	4.75-5.50	4.7-5.2
	W	5.9-6.7	5.50-6.75	5.9-6.7	5.50-6.75	6.0-6.7
	V	1.7-2.1	1.75-2.20	1.6-2.1	1.75-2.20	1.7-2.0
	Co	—	—	—	—	—
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦262	≦255	≦262	—	240-300
	焠火HRC	≧64	≧63	≧64	—	≧64

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SKH52材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH52	W6Mo5Cr4V3	SKH52	M3-1	S 6-5-3
化學成分(％) Chemical composition	C	1.0-1.1	1.0-1.1	1.0-1.1	1.0-1.1	1.17-1.27
	Si	≦0.45	≦0.45	≦0.45	0.20-0.45	≦0.45
	Mn	≦0.4	0.15-0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	0.20-0.45	≦0.25	—	—
	Cr	3.8-4.5	3.75-4.50	3.8-4.5	3.75-4.50	3.8-4.5
	Mo	5.5-6.7	4.75-6.5	5.5-6.7	4.75-6.50	4.7-5.2
	W	5.5-6.7	5.00-6.75	5.5-6.7	5.50-6.75	6.0-6.7
	V	2.3-2.6	2.25-2.75	2.3-2.6	2.25-2.75	2.7-3.2
	Co	—	—	—	—	—
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦262	≦255	≦262	≦255	240-300
	焠火HRC	≧64	≧65	≧64	≧64	≧65

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SKH53材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	JIS	ASTM	DIN
記號		SKH53	SKH53	M3-2	S 6-5-3
化學成分(％) Chemical composition	C	1.0-1.25	1.0-1.25	1.15-1.25	1.17-1.27
	Si	≦0.45	≦0.45	0.20-0.45	≦0.45
	Mn	≦0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	≦0.25	—	—
	Cr	3.8-4.5	3.8-4.5	3.75-4.50	3.8-4.5
	Mo	4.7-5.2	4.7-5.2	4.75-6.50	4.7-5.2
	W	5.5-6.5	5.5-6.5	5.00-6.75	6.0-6.7
	V	2.7-3.2	2.7-3.2	2.75-3.25	2.7-3.2
	Co	—	—	—	—
	Cu	≦0.25	≦0.25	—	—
機械性質 (硬度)	退火HB	≦269	≦269	≦255	240-300
	焠火HRC	≧64	≧64	≧64	≧65

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SKH54材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	JIS	ASTM	DIN
記號		SKH54	SKH53	M4	S 6-5-3
化學成分(％) Chemical composition	C	1.25-1.40	1.25-1.40	1.25-1.40	1.17-1.27
	Si	≦0.45	≦0.45	0.20-0.45	≦0.45
	Mn	≦0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	≦0.25	—	—
	Cr	3.8-4.5	3.8-4.5	3.75-4.70	3.8-4.5
	Mo	4.2-5.0	4.2-5.0	4.25-5.50	4.7-5.2
	W	5.2-6.0	5.2-6.0	5.25-6.50	6.0-6.7
	V	3.7-4.2	3.7-4.2	3.75-4.50	2.7-3.2
	Co	—	—	—	—
	Cu	≦0.25	≦0.25	—	—
機械性質 (硬度)	退火HB	≦269	≦269	≦255	240-300
	焠火HRC	≧64	≧64	≧64	≧65

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SKH55材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	DIN
記號		SKH55	W6Mo5Cr4V2Co5	SKH55	S 6-5-2-5
化學成分(％) Chemical composition	C	0.85-0.95	0.8-0.9	0.8-0.9	0.88-0.96
	Si	≦0.45	0.2-0.45	≦0.45	≦0.45
	Mn	≦0.4	0.15-0.4	≦0.4	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	—	0.20-0.45	—	—
	Cr	3.8-4.5	3.75-4.50	3.8-4.5	3.8-4.5
	Mo	4.7-5.2	4. 5-5.5	4.7-5.2	4.7-5.2
	W	5.9-6.7	5.5-6.5	5.9-6.7	6.0-6.7
	V	1.7-2.1	1.75-2.25	1.7-2.1	1.7-2.0
	Co	4.5-5.0	4.5-5.5	4.5-5.0	4.5-5.0
	Cu	—	—	—	—
機械性質 (硬度)	退火HB	≦269	≦269	≦269	240-300
	焠火HRC	≧64	≧64	≧64	≧64

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SKH56材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM
記號		SKH56	W6Mo5Cr4V2Co5	SKH56	M3-1
化學成分(％) Chemical composition	C	0.85-0.96	0.8-0.9	0.85-0.96	0.8-0.9
	Si	≦0.4	0.2-0.45	≦0.4	0.20-0.45
	Mn	≦0.4	0.15-0.40	≦0.4	0.15-0.45
	P	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—
	Cr	3.8-4.5	3.75-4.50	3.8-4.5	3.75-4.0 0
	Mo	4.7-5.2	4.5-5.5	4.7-5.2	4.5-5.5
	W	5.9-6.7	5.5-6. 5	5.9-6.7	5.5-6. 5
	V	1.7-2.1	1.7-2.25	1.7-2.1	1.75-2.25
	Co	7.0-9.0	4.5-5.5	7.0-9.0	7.75-8.75
	Cu	≦0.25	—	≦0.25	—
機械性質 (硬度)	退火HB	≦285	≦269	≦285	≦269
	焠火HRC	≧64	≧64	≧64	≧64

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SKH57材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	JIS	ASTM	DIN
記號		SKH57	SKH57	M41	S 10-4-3-10
化學成分(％) Chemical composition	C	1.20-1.35	1.20-1.35	1.05-1.15	1.20-1.35
	Si	≦0.4	≦0.4	0.15-0.2	≦0.45
	Mn	≦0.4	≦0.4	0.2-0.60.	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	≦0.25	—	—
	Cr	3.8-4.5	3.8-4.5	3.75-4.50	3.8-4.5
	Mo	3.2-3.9	3.2-3.9	3.25-4.25	3.2-3.9
	W	9.0-10.0	9.0-10.0	6.25-7.00	9.0-10.0
	V	3.0-3.5	3.0-3.5	1.75-2.25	3.0-3.5
	Co	9.5-10.5	9.5-10.5	4.75-5.75	9.5-10.5
	Cu	≦0.25	≦0.25	—	—
機械性質 (硬度)	退火HB	≦293	≦293	≦269	240-300
	焠火HRC	≧66	≧66	≧66	≧66

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SKH58材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	JIS	ASTM
記號		SKH58	SKH58	M7
化學成分(％) Chemical composition	C	0.95-1.05	0.95-1.05	0.97-1.05
	Si	≦0.7	≦0.7	0.2-0.55
	Mn	≦0.4	≦0.4	0.15-0.40
	P	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03
	Ni	—	—	—
	Cr	3.5-4.5	3.5-4.5	3.75-4.50
	Mo	8.2-9.2	8.2-9.2	8.2-9.2
	W	1.5-2.1	1.5-2.1	1.4-2.1
	V	1.7-2.2	1.7-2.2	1.75-2.25
	Co	—	—	—
	Cu	≦0.25	≦0.25	—
機械性質 (硬度)	退火HB	≦269	≦269	≦277
	焠火HRC	≧66	≧66	≧65

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SKH59材質化學成分及機械性質表。點擊回到列表

標準代碼		CNS	GB	JIS	ASTM	DIN
記號		SKH59	W2Mo9Cr4VCo8	SKH59	M42	S 6-5-3
化學成分(％) Chemical composition	C	1.05-1.15	1.05-1.15	1.05-1.15	1.05-1.15	1.05-1.15
	Si	≦0.7	0.15-0.65	≦0.7	0.15-0.65	≦0.45
	Mn	≦0.4	0.15-0.4	≦0.4	0.15-0.40	≦0.4
	P	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	S	≦0.03	≦0.03	≦0.03	≦0.03	≦0.03
	Ni	≦0.25	—	≦0.25	—	—
	Cr	3.5-4.5	3.50-4.25	3.5-4.5	3.50-4.25	3.6-4.4
	Mo	9.0-10.0	9.0-10.0	9.0-10.0	9.0-10.0	9.0-10.0
	W	1.2-1.9	1.15-1.85	1.2-1.9	1.15-1.85	1.2-1.8
	V	0.9-1.3	0.95-1.35	0.9-1.3	0.95-1.35	1.0-1.3
	Co	7.5-8.5	7.5-8.75	7.5-8.5	7.75-8.75	7.5-8.5
	Cu	≦0.25	—	≦0.25	—	—
機械性質 (硬度)	退火HB	≦277	≦269	≦277	≦269	240-300
	焠火HRC	≧66	≧66	≧66	≧66	≧66

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碧威是在刀具製造及機械工具業界中具有足夠水準的製造供應商!

 

What is cutting tool?

There are lots of metal products around us in our life, but we all know how they are produced?

There are many processing methods to make metal, cutting is the major one among them.

Firstly, let’s learn about cutting tool and machining! We often talk about cutting tool. However, what is cutting tool?

At first, we should think about cutting tools around us.

There are a number of cutting tools in our lives .., kitchen knife, knives and other cutting tools (rub the radish), paper knife and pencil sharpener of the table, the saw and plane of tool box and so on, these also belong to cutting tools. Cutters change shape of objects through cutting, and produce cutting debris.

We should have understood that cutting tool is the tool that may change the shape into our expected form through cutting. The cutters in life includes fruit knife, vegetable knife, and cutting saws for wood, etc.

Reference source:mitsubishicarbide.net

 

Characteristics of precision miniature cutting tools

Four major cutting method:

1. Precision micro turning
2. Precision micro milling
3. Precision micro fly cut
4. Precision micro drilling

There are precision micro turning tools,flat end mills, ball end mill, throwing cutter, and drills according to these applications. The working conditions, friction, impact, and cutting resistance are much worse because of the limitation of size, which is different from normal spec tools.

Basic requirements for miniature cutters:

1. Small work piece and micro machining partIn order to fit the characteristics of tiny machining, high machining accuracy and avoid interference between the work piece and the cutter, the whole work piece and the machining scale must be synchronized reduced.
2. Sharp cutting edgeUnder micro cutting conditions, in order to achieve a very small amount of material removed, the depth of cut and feed rate is usually in the micron level, the cutting edge should be sharp enough.
3. Good quality of surfaceSurface quality influences the performance of the micro-cutting tools a lot, poor surface quality will not only increase the frictional resistance and lead to the deterioration while fine cutting, but also weaken the toolstrength.
4. Good quality of surfaceRotary tools like the small diameter of end mills and drills, micro-cutting is carried out under high spindle speed.The cutting part of cutters should have sufficient strength and dynamic characteristics, which are able to afford the high impact load.
5. Rigid, anti-deformation abilityTo ensure working accuracy, miniature cutters should have higher rigidity to reduce the deformation and rebound under cutting force.
6. Good wear resistance, average wear processThe cutting part of the micro cutting tools should have enough hardness to ensure its abrasion resistance.Blunt cutter will not only affect its machining accuracy, but also happen processing glitches which will bring difficulty of surface finishing.
7. High accuracy of dynamic balanceThe run out feed rate of micro cutter is significantly greater than cutting for normal size… Under high spindle speed, the cutting edge between the cutting load is very uneven, the cutting force fluctuation is serious, the tip trajectory and accuracy of processing, the tiny end mills, drills and other rotary tool should have high accuracy of dynamic balancing.
8. Accurate and reliable tool clampingSmall rotary tool installation error is the main factor to influence the machining accuracy and reliability. The tool clamping system should have high contact rigidity, accuracy of repeating position, and good speedy locking.

Material of micro cutters

It is a very important mean to choose the advanced and applicable tool material, which may ensure the whole performance of micro tools .. The ideal materials for miniature cutters are diamond, fine grain and ultra-fine grain carbide.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

BW’s popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.

 

Characteristics and processing differences of cutting tools

Characteristics and processing differences of the four kinds of cutting tools?

1. Plain Milling Cutter：

   Plain Milling Cutter is the most commonly used tool in a horizontal milling machine. Plain Milling Cutter’s shape is like disc or cylindrical, which has blades on the outer circumference of the cutter for milling the plane which parallel to the cutter axis. The blade shapes include straight and helical blade-shaped. Generally helical blade shape is more commonly used. If the blade width is less 20mm, it is only suitable for light milling and milling hard materials because of its multi blades and small chip slots; if the width is over 20mm, it’s often designed as helical teeth in order to reduce the shear force and prevent vibration during milling, with fewer blades, so the chip slot is larger which is suitable for heavy milling and cutting soft materials.

2. End Mill：

   Such cutters have a flute in the circumferential surface and the end for milling flat, face, shoulder angle and groove .There are straight shank, taper shank, straight flute, helical flute, double flute, multi-flute, and so on.

3. Side Milling Cutter：

   The shape of the side milling cutter is similar to the straight flute face cutter. Except the shape and function of end mills, its side also has cutting edge, which can milling the face and the side of work piece. Edge shape can be divided into straight teeth, spiral teeth and staggered teeth. Staggered teeth may be offset against each other and reduce vibration during machining, which is suitable for heavy milling.

4. Face Milling Cutter：

   Face milling cutter is a disc-shaped, with cutting blades around the body and the side face. Such cutter is specialized in cutting larger plane. The blade face is wider, and the cutter body is made of general tool steel, then embedded high-speed steel or carbide blade.

Bewise Inc., being a professional manufacturer of various cutting tools, is endeavoring to make excellent products. We are very experienced in custom-made tools, and good at solving customers’ problems when they meet difficulties and troubles. Through everlasting research and practices, we understand thoroughly about different materials of cutters and cutting tools.

 

BW’s popular products for tool series including circular saw, carbide cutting tool, saw blade, wood saw blade, special tool,side milling cutter, …etc; For machines we have spiral tube cooler, cutter grinder, and the latest design and advanced powder forming machine / pelletizer. Bewise is a superior manufacturer and supplier of cutter production and machinery industry.