GB/T 18462-2025 Laser processing machines―Performance specifications for metal cutting English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 31.260
CCS L 51
National Standard of the People's Republic of China
GB/T 18462-2025
Replaces GB/Z 18462-2001
Laser processing machines - Performance specifications for metal cutting
激光加工机械 金属切割的性能规范
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Performance requirements
5 Test methods
6 Inspection rules
Laser processing machines - Performance specifications for metal cutting
1 Scope
This document specifies the cutting performance of laser processing machinery and the performance requirements for metal workpieces completed by cutting with such machinery, describes the corresponding test methods, and prescribes the inspection rules.
This document is applicable to the vertical laser cutting of metal materials with a thickness of 0.1mm to 60mm.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 15313 Terminology for laser
GB/T 34380-2017 CNC laser cutting machine
3 Terms and Definitions
The terms and definitions defined in GB/T 15313 and the following are applicable to this document.
3.1
adhering slag
cured metal slag attached to the lower edge of the cutting surface after cutting
3.2
heat-affected-zone width
maximum distance measured perpendicular to the cutting section between the section and the observable point where material properties change due to cutting heat
3.3
kerf width
distance between the two sides of the workpiece incision where the laser beam is incident
3.4
recast layer
layer of material formed by melting and re-solidification of the material surface due to the high energy density and rapid heating of the laser during laser processing
3.5
squareness
maximum vertical distance between the expected cutting section and the actual cutting section
Note: Denoted by u.
4 Performance requirements
4.1 General
The types of lasers adopted by the laser processing machinery specified in this document are shown in Table 1.
To meet the performance test requirements, the laser processing machinery shall preferably have the following basic functions:
a) Real-time matching and adjustable output of laser power;
b) Matching output of pulse parameters for pulsed lasers;
c) Adjustable cutting speed;
d) Automatic following and adjustment of laser focus;
e) Adjustable pressure and flow rate of auxiliary gas;
f) A database capable of storing no less than 50 cutting processes;
g) Laser radiation safety protection function.
4.2 Cutting performance requirements for laser processing machinery
4.2.1 The performance requirements for the cutting speed, nominal cutting thickness, cutting area, laser, light guiding and focusing system, and CNC mobile platform of the laser processing machinery shall comply with the provisions of specific products.
4.2.2 The cutting performance of laser processing machinery is related to machine tool accuracy, which shall comply with the requirements specified in Table 2 of GB/T 34380-2017.
4.3 Performance requirements for cut metal workpieces
4.3.1 Surface roughness
The surface roughness of cut metal workpieces is evaluated by Rz, and the surface roughness quality is classified into four grades from high to low: Grade O, Grade Ⅰ, Grade Ⅱ, and Grade N. The total roughness quality Qz is calculated based on the measured surface roughness Rz of the cutting cross-section. For different grades, Qz shall meet the relational expressions with the workpiece thickness a (unit: mm) specified in Table 2, so as to assess the corresponding surface roughness grade.
4.3.2 Squareness
The squareness accuracy of cut metal workpieces is classified into four grades from high to low: Grade O, Grade Ⅰ, Grade Ⅱ, and Grade N. For different grades, the total squareness accuracy uq of the measured cutting cross-section shall meet the relational expressions with the workpiece thickness a (unit: mm) specified in Table 3, so as to assess the corresponding squareness accuracy grade.
4.3.3 Geometric tolerance and dimensional accuracy
The geometric tolerances and dimensions of cut metal workpieces include roundness, parallelism, and dimensional accuracy. Different types of lasers shall be selected for cutting materials of different thicknesses. The geometric tolerances and dimensional accuracy for different application scenarios shall meet the requirements specified in Table 4, Table 5, and Table 6.
4.3.4 Kerf width
The kerf width of cut metal workpieces is affected by factors such as equipment parameters, cutting parameters, and material thickness. Relevant parameters need to be fixed to maintain the relative stability of kerf width.
Non-closed graphics shall be used for measurement, and the kerf width shall be calculated based on measured data from multiple different points. The kerf width shall meet the requirements specified in Table 7.
4.3.5 Slag adhesion height
The slag adhesion of cut metal workpieces is evaluated by the height of metal slag protruding above the lower surface. The slag adhesion height shall comply with the provisions of Table 8.
Standard
GB/T 18462-2025 Laser processing machines―Performance specifications for metal cutting (English Version)
Standard No.
GB/T 18462-2025
Status
valid
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Implemented on
2025-9-1
Delivery
via email in 1~3 business day
Detail of GB/T 18462-2025
Standard No.
GB/T 18462-2025
English Name
Laser processing machines―Performance specifications for metal cutting
GB/T 18462-2025 Laser processing machines―Performance specifications for metal cutting English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 31.260
CCS L 51
National Standard of the People's Republic of China
GB/T 18462-2025
Replaces GB/Z 18462-2001
Laser processing machines - Performance specifications for metal cutting
激光加工机械 金属切割的性能规范
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Performance requirements
5 Test methods
6 Inspection rules
Laser processing machines - Performance specifications for metal cutting
1 Scope
This document specifies the cutting performance of laser processing machinery and the performance requirements for metal workpieces completed by cutting with such machinery, describes the corresponding test methods, and prescribes the inspection rules.
This document is applicable to the vertical laser cutting of metal materials with a thickness of 0.1mm to 60mm.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 15313 Terminology for laser
GB/T 34380-2017 CNC laser cutting machine
3 Terms and Definitions
The terms and definitions defined in GB/T 15313 and the following are applicable to this document.
3.1
adhering slag
cured metal slag attached to the lower edge of the cutting surface after cutting
3.2
heat-affected-zone width
maximum distance measured perpendicular to the cutting section between the section and the observable point where material properties change due to cutting heat
3.3
kerf width
distance between the two sides of the workpiece incision where the laser beam is incident
3.4
recast layer
layer of material formed by melting and re-solidification of the material surface due to the high energy density and rapid heating of the laser during laser processing
3.5
squareness
maximum vertical distance between the expected cutting section and the actual cutting section
Note: Denoted by u.
4 Performance requirements
4.1 General
The types of lasers adopted by the laser processing machinery specified in this document are shown in Table 1.
To meet the performance test requirements, the laser processing machinery shall preferably have the following basic functions:
a) Real-time matching and adjustable output of laser power;
b) Matching output of pulse parameters for pulsed lasers;
c) Adjustable cutting speed;
d) Automatic following and adjustment of laser focus;
e) Adjustable pressure and flow rate of auxiliary gas;
f) A database capable of storing no less than 50 cutting processes;
g) Laser radiation safety protection function.
4.2 Cutting performance requirements for laser processing machinery
4.2.1 The performance requirements for the cutting speed, nominal cutting thickness, cutting area, laser, light guiding and focusing system, and CNC mobile platform of the laser processing machinery shall comply with the provisions of specific products.
4.2.2 The cutting performance of laser processing machinery is related to machine tool accuracy, which shall comply with the requirements specified in Table 2 of GB/T 34380-2017.
4.3 Performance requirements for cut metal workpieces
4.3.1 Surface roughness
The surface roughness of cut metal workpieces is evaluated by Rz, and the surface roughness quality is classified into four grades from high to low: Grade O, Grade Ⅰ, Grade Ⅱ, and Grade N. The total roughness quality Qz is calculated based on the measured surface roughness Rz of the cutting cross-section. For different grades, Qz shall meet the relational expressions with the workpiece thickness a (unit: mm) specified in Table 2, so as to assess the corresponding surface roughness grade.
4.3.2 Squareness
The squareness accuracy of cut metal workpieces is classified into four grades from high to low: Grade O, Grade Ⅰ, Grade Ⅱ, and Grade N. For different grades, the total squareness accuracy uq of the measured cutting cross-section shall meet the relational expressions with the workpiece thickness a (unit: mm) specified in Table 3, so as to assess the corresponding squareness accuracy grade.
4.3.3 Geometric tolerance and dimensional accuracy
The geometric tolerances and dimensions of cut metal workpieces include roundness, parallelism, and dimensional accuracy. Different types of lasers shall be selected for cutting materials of different thicknesses. The geometric tolerances and dimensional accuracy for different application scenarios shall meet the requirements specified in Table 4, Table 5, and Table 6.
4.3.4 Kerf width
The kerf width of cut metal workpieces is affected by factors such as equipment parameters, cutting parameters, and material thickness. Relevant parameters need to be fixed to maintain the relative stability of kerf width.
Non-closed graphics shall be used for measurement, and the kerf width shall be calculated based on measured data from multiple different points. The kerf width shall meet the requirements specified in Table 7.
4.3.5 Slag adhesion height
The slag adhesion of cut metal workpieces is evaluated by the height of metal slag protruding above the lower surface. The slag adhesion height shall comply with the provisions of Table 8.
