GB/T 12204-2010 English PDF

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GB/T 12204-2010: Glossary of general terms in metal cutting
Status: Valid

GB/T 12204: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12204-2010	1679	Add to Cart	6 days	Glossary of general terms in metal cutting	Valid
GB/T 12204-1990	RFQ	ASK	14 days	Glossary of general terms in metal cutting	Obsolete

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Basic data

Standard ID: GB/T 12204-2010 (GB/T12204-2010)
Description (Translated English): Glossary of general terms in metal cutting
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J41
Classification of International Standard: 25.100.50
Word Count Estimation: 76,713
Date of Issue: 2010-11-10
Date of Implementation: 2011-03-01
Older Standard (superseded by this standard): GB/T 12204-1990
Adopted Standard: ISO 3002-1-1982, MOD; ISO 3002-1-1982/Amd 1-1992, MOD; ISO 3002-3-1984, MOD; ISO 3002-4-1984, MOD
Regulation (derived from): National Standard Approval Announcement 2010 No.8 (Total No.163)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the basic metal cutting with terms and definitions. Symbol part of the term. This standard applies to metal cutting officially published professional standards and publications.

GB/T 12204-2010: Glossary of general terms in metal cutting

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Glossary of general terms in metal cutting ICS 25.100.50 J41 National Standards of People's Republic of China Replace GB/T 12204-1990 Basic terms of metal cutting (ISO 3002-1.1982,Basicquantitiesincuttingandgrinding- ISO 3002-3.1984,Basicquantitiesincuttingandgrinding- ISO 3002-4.1984,Basicquantitiesincuttingandgrinding- Issued on.2010-11-10 Implemented on.2011-03-01 General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued by the National Standardization Administration of China

Table of contents

Foreword Ⅲ 1 Scope 1 2 General terms and their definitions 1 2.1 Workpiece surface 1 2.2 Tool Elements 1 2.3 Tool surface 2 2.4 Cutting edge 3 2.5 Tool size 5 2.6 Movement of the tool and workpiece 5 3 Terms and definitions of the reference system 13 3.1 Stationary Reference System 13 3.2 Working Reference System 15 4 Terms and definitions of tool angle and working angle 28 4.1 Tool angle 28 4.2 Working angle 30 5 Terms and definitions before chip breaking 42 5.1 Define point before chip breaking 42 5.2 Chip breaking action surface 42 5.3 Distance between chip breaking table 42 5.4 Breaker height 42 5.5 Chip breaking bevel 42 5.6 Wedge angle of chipbreaker 42 5.7 Chipbreaker radius 42 5.8 Chipbreaker radius 42 5.9 Chipbreaker depth 42 5.10 Width of front edge of chip breaking 43 5.11 Front end distance of chip breaking 43 6 Terms and definitions of spiral direction and cutting direction 46 6.1 Helix direction 46 6.2 Cutting direction 46 7 Terms and definitions of geometrical parameters and motion parameters in cutting 48 7.1 Feed amount 48 7.2 Cutting edge and related quantities 48 7.3 Amount of knife taken 48 7.4 Cutting layer and size 49 7.5 Through-cut layer and size 49 7.6 Material removal rate 50 8 Terms and definitions of force, energy and power 55 8.1 Cutting force and torque during tool cutting 55 8.2 Cutting force generated by the cutting part 55 8.3 The component of the resultant cutting force 56 8.4 Simplify the component forces in the two-dimensional orthogonal cutting model 57 8.5 Energy 58 8.6 Power 58 8.7 Correlation 59 Chinese Pinyin Index 63 English Index 66 Index of term symbols 72 Basic terms of metal cutting

1 Scope

This standard specifies the basic terms and definitions used in metal cutting, and the symbols for some terms. This standard applies to standards and books officially published in the metal cutting profession.

2 General terms and their definitions

2.1 Workpiece surface 2.1.1 Worksurface There is a surface to be removed on the workpiece (see Figure 1). 2.1.2 Machinedsurface The surface formed by the cutting tool on the workpiece (see Figure 1). 2.1.3 Transition surface The part of the surface formed by the cutting edge (2.4.1) on the workpiece, which is removed in the next cutting stroke, the next revolution of the tool or the workpiece, or Those are cut off by the next cutting edge (2.4.1) (see Figure 1). 2.2 Tool elements 2.2.1 Knife body The part of the tool holding the blade or blade, or the part where the cutting edge (2.4.1) is formed by it (see Figure 3, Figure 4, Figure 5). 2.2.2 Shank The clamping part on the tool [see Figure 2a), Figure 4, Figure 5]. 2.2.3 Knife hole toolbore The tool is used to install or fasten the inner hole on the spindle, mandrel or mandrel (see Figure 3). 2.2.4 Toolaxis An imaginary straight line on the tool, which has a certain relationship with the positioning surface when the tool is manufactured or reground and the mounting surface (2.2.6) when the tool is in use. Relationship (see Figure 3, Figure 4, Figure 5). 2.2.5 Cuttingpart The cutting part of each part of the tool is composed of cutting edge (2.4.1), front (2.3.1) and back (2.3.2), etc. It is composed of various elements that produce chips [see Figure 2a)]. 2.2.6 Mounting base A surface on the tool holder (2.2.2) or tool hole (2.2.3) that is parallel or perpendicular to the base surface (3.1.2) of the tool for the tool to be manufactured. For installation or positioning during grinding and measurement [see Figure 2a), Figure 12, Figure 18]. 2.2.7 Wedge The cutting part (2.2.5) is sandwiched between the front (2.3.1) and the rear (2.3.2), which is connected to the main cutting edge (2.4.1.1) or the secondary cutting edge (2.4.1.1). The cutting edge (2.4.1.2) is connected (see Figure 3 and Figure 7). 2.3 Tool surface 2.3.1 Front face Rake face Aγ The surface through which the chips flow on the tool [see Figure 2a), Figure 3, Figure 4, Figure 5, Figure 7]. 2.3.1.1 First face Chamfer Aγ1 When the front face of the tool (2.3.1) is composed of several faces that intersect each other, the face closest to the cutting edge (2.4.1) is called the first front face (See Figure 7). 2.3.1.2 Second face Aγ2 When the front face of the tool (2.3.1) is composed of several intersecting faces, the second face counted from the cutting edge (2.4.1) is called The second front (see Figure 7). 2.3.1.3 Reduced face Aγ A special front (2.3.1), separated from the rest of the front (2.3.1) with a step, and the chips only contact it (see Figure 2c)]. 2.3.1.4 Chipbreaker A modified front face (2.3.1), used to control or break the chips, it is made of grooves or steps integrated with the tool or by additional stops Constituted. 2.3.2 Back flank Flank Aα The surface opposite to the surface produced during cutting on the workpiece [see Figure 2a), Figure 3, Figure 4, Figure 5, Figure 7]. 2.3.2.1 Majorflank Aα The cutting tool intersects with the front (2.3.1) to form the back (2.3.2) of the main cutting edge (2.4.1.1) [see Figure 2a)]. 2.3.2.2 Minorflank A′α The cutting tool intersects with the front (2.3.1) to form the back (2.3.2) of the secondary cutting edge (2.4.1.2) [see Figure 2a)]. 2.3.2.3 Firstflank Cutting edge Aα1 When the back of the tool (2.3.2) is composed of several intersecting faces, the face closest to the cutting edge (2.4.1) is called the first back Surface [see Figure 2a)]. 2.3.2.4 Secondflank Aα2 When the back of the tool (2.3.2) is composed of several intersecting faces, the second face from the cutting edge (2.4.1) is called The second back [see Figure 2a)]. 2.3.3 Front and back section 2.3.3.1 Front profile faceprofile The curve formed by the intersection of the front of the tool (2.3.1) and any plane, usually the section is defined and measured in the normal plane (3.1.6) (see Figure 2d)]. 2.3.3.2 Back truncated flankprofile The curve formed by the intersection of the back of the tool (2.3.2) and any plane, usually the section is defined and measured in the normal plane (3.1.6) (see Figure 2d)]. 2.4 Cutting edge 2.4.1 Cuttingedge The edge intended for cutting on the front of the tool (2.3.1). 2.4.1.1 Main cutting edge toolmajorcuttingedge Starting from the point where the entering angle (4.1.1.1) on the cutting edge (2.4.1) is zero, and at least one cutting edge (2.4.1) is intended to be used on the workpiece Cut out the entire cutting edge (2.4.1) of the transition surface (2.1.3) [see Figure 2a), Figure 3, Figure 4, Figure 5, Figure 7]. 2.4.1.2 Toolminorcuttingedge S′ The cutting edge (2.4.1) other than the main cutting edge (2.4.1.1) also starts at the point where the entering angle (4.1.1.1) is zero, but it faces away from the main cutting edge (2.4.1.1). Extend from the direction of the main cutting edge (2.4.1.1) [see Figure 2a), Figure 3, Figure 4, Figure 5]. 2.4.1.3 Workingcuttingedge The edge of a tool intended to be used for cutting. 2.4.1.3.1 Working major cutting edge Se It starts from the point where the working entering angle (4.2.1.1) on the cutting edge (2.4.1) is zero, and at least one cutting edge (2.4.1) is intended to be used in work. The entire section of the cutting edge (2.4.1) that cuts the transition surface (2.1.3) on the part [see Figure 2b)]. 2.4.1.3.2 Workingminorcuttingedge S′e The cutting edge (2.4.1) except for the working main cutting edge (2.4.1.3.1) also starts from the working entering angle (4.2.1.1) is zero Point, but it extends away from the working main cutting edge (2.4.1.3.1) direction [see Figure 2b)]. 2.4.1.4 Activecuttingedge At a specific moment, the working cutting edge (2.4.1.3) actually participates in cutting, and produces a transition surface (2.1.3) and a processed table on the workpiece. The edge of the face (2.1.2) (see Figure 2). 2.4.1.4.1 Active major cutting edge Sa An edge on the active cutting edge (2.4.1.4), when its length is measured along the cutting edge (2.4.1), it starts from the working cutting edge (2.4.1.3) The point of intersection with the surface of the workpiece ends at the point where the working entering angle (4.2.1.1) on the working cutting edge (2.4.1.3) is considered to be zero degrees (see Figure 2b)]. 2.4.1.4.2 Activeminorcuttingedge S′a An edge on the active cutting edge (2.4.1.4), when its length is measured along the cutting edge (2.4.1), it starts from the working cutting edge (2.4.1.3) The upper working entering angle (4.2.1.1) is considered to be the point of zero degrees, which ends at the working minor cutting edge (2.4.1.3.2) and the machined surface (2.1.2). Intersection point [see Figure 2b)]. 2.4.2 Corner Refers to a relatively small part of the cutting edge (2.4.1) at the connection between the main cutting edge (2.4.1.1) and the secondary cutting edge (2.4.1.2) (see Figure 2 to Figure 6a)]. 2.4.2.1 Rounded corner A tool tip (2.4.2) with a curved cutting edge (2.4.1) [see Figure 6a)]. 2.4.2.2 Chamfered corner A tip (2.4.2) with a straight cutting edge (2.4.1) [see Figure 6a)]. 2.4.3 Selectedpointonthecuttingedge A selected point on any part of the cutting edge (2.4.1) is used to define the tool angle or working angle at that point [see Figure 2d)]. 2.4.4 Blunt cutting edge roundedcuttingedge The cutting edge (2.4.1) formed by the arc transition between the front (2.3.1) and the back (2.3.2). 2.4.5 Interrupted cutting edge The cutting edge (2.4.1) is discontinuous and discontinuous, and the discontinuity is large enough to prevent chip formation at the discontinuity (see Figure 6b)]. ......

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