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Edge Break

The sharp edges of most precision machined surface are “broken” through a process called “edge break.” Edge break is accomplished by rounding off the corner, or by machining a flat “chamfer” to reduce the sharpness of the edge. The process is intended to ensure part longevity, safe handling, and proper performance.

Edge break serves several purposes depending on the application. Radiused and chamfered edges limit possible fracture points for components that are subject to high stresses or loads. Where component edges may effect air flow, such as turbine blades and nozzles, tight edge break tolerances ensure proper aerodynamic performance. Chamfers may also be added to fasteners to ensure that they do not protrude from shafts or casings. Lastly, in all of these cases, edge breaking reduces injuries from sharp edges and burrs, both in the production environment and in the field.

“哇,在这样做的5年中,我一直以为我有一只沉重的手。这是我第一次知道A部分规格。”

领先的涡轮发动机制造商的机械师看到了4D Inspec的边缘断裂测量

视觉检查无法量化边缘休息

传统上,在商店地板上,经常使用光学比较器,在视觉上检查了边缘断裂几何形状。但是,视觉测试虽然快速且方便,但本质上是主观的。判断因视觉比较器的检查员,照明和对齐方式而异。更重要的是,视觉测试不提供可量化的数据。

单轨道方法太可变了,无法进行精确测量

A 2D portable stylus profiler is a common instrument for quantifying edge break and chamfer geometries. Though widely used, single-trace measurements are prone to large errors due to variability in both the location and angle of the measurement, as the image below shows.

基于手写笔的伪造者也可能难以测量锋利的边缘,而不会破坏手写笔提示。Stylus Profiler的有限垂直范围可能会阻止其在机械孔上测量大型弯腰。再加上该技术对振动的敏感性,很明显,这种“快速”方法通常可以花费30分钟以上的设置和扫描时间来实现单个高质量的痕迹。

其他方法,例如基于激光的量规枪,为边缘断裂和倒角测量提供了一些车间的能力,但仅在一条线上。对齐误差持续存在,低分辨率意味着它们无法测量细几何形状。材料表面,反射率和斜率也会影响测量结果。

Related video: Measuring edge break and chamfer with a handheld gauge

3D measurement provides accurate, repeatable edge break analysis

4D InSpec is a handheld, 3D measurement device that uses polarized structured light for rapid, simple, shop-floor measurement of edge break, chamfer angles, and other precision part geometries. Accuracy, repeatability, reproducibility, and durability make the 4D InSpec the right tool for measuring edge break in shop-floor environments.

The strength of this, you can see by picturing a measurement that behaves like the illustration below. By using planes connected in 3D to represent the chamfer and joining sides, the essential parameters become independent of orientation of the gauge–all profiles are calculated in respect to the direction of the planes.

边缘破坏测量如何工作

手持式4D Inspec可以直接针对以待测量的边缘。对齐是微不足道的,因为它很容易获得正确的距离,并且角度可变性很强。该系统提供了立即的反馈,以生成整个边缘的高度重复,3D测量值,而不仅仅是单个迹线。

但是,仅进行3D测量不足以分析边缘断裂。4D Inspec中包含的软件对齐平面和圆柱体拟合几何形状,而不是将测量值视为一系列相邻轨迹。此方法相对于要测量的多个表面来补偿仪器的倾斜和旋转。

Using this method, measurement results are based on the 3D plane and cylinder fits, rather than a single trace or even an average across multiple traces. This method greatly improves accuracy, records the results numerically, and makes for much more repeatable measurements.

Read About Related Applications

基于手写笔的伪造者也可能难以测量锋利的边缘,而不会破坏手写笔提示。Stylus Profiler的有限垂直范围可能会阻止其在机械孔上测量大型弯腰。再加上该技术对振动的敏感性,很明显,这种“快速”方法通常可以花费30分钟以上的设置和扫描时间来实现单个高质量的痕迹。

其他方法,例如基于激光的量规枪,为边缘断裂和倒角测量提供了一些车间的能力,但仅在一条线上。对齐误差持续存在,低分辨率意味着它们无法测量细几何形状。材料表面,反射率和斜率也会影响测量结果。

Related video: Measuring edge break and chamfer with a handheld gauge

3D measurement provides accurate, repeatable edge break analysis

4D InSpec is a handheld, 3D measurement device that uses polarized structured light for rapid, simple, shop-floor measurement of edge break, chamfer angles, and other precision part geometries. Accuracy, repeatability, reproducibility, and durability make the 4D InSpec the right tool for measuring edge break in shop-floor environments.

The strength of this, you can see by picturing a measurement that behaves like the illustration below. By using planes connected in 3D to represent the chamfer and joining sides, the essential parameters become independent of orientation of the gauge–all profiles are calculated in respect to the direction of the planes.

边缘破坏测量如何工作

手持式4D Inspec可以直接针对以待测量的边缘。对齐是微不足道的,因为它很容易获得正确的距离,并且角度可变性很强。该系统提供了立即的反馈,以生成整个边缘的高度重复,3D测量值,而不仅仅是单个迹线。

但是,仅进行3D测量不足以分析边缘断裂。4D Inspec中包含的软件对齐平面和圆柱体拟合几何形状,而不是将测量值视为一系列相邻轨迹。此方法相对于要测量的多个表面来补偿仪器的倾斜和旋转。

Using this method, measurement results are based on the 3D plane and cylinder fits, rather than a single trace or even an average across multiple traces. This method greatly improves accuracy, records the results numerically, and makes for much more repeatable measurements.

下载白皮书

A succinct review of what is needed to make edge break measurements a value-adding operation. Evaluation of this critical feature can be a means to improve productivity, increase the number of passed parts, and decrease costs from waste and failures.

立即下载PDF,以了解如何并了解其为什么重要。

添加了技术资源

H

3D shop floor characterization of radii and chamfers

A published paper on how best to get a measurement from a chamfered surface or a corner that needs edge break.

H

Developing Chamfer and Edge Break Measurements

Manufacturers of many types can benefit from measuring edge break. To help those customers, we are testing our Edge Break application for 4D InSpec.

Demo of edge break measurements

This webcast is a demo of edge break, and a lively discussion of the parameters needed to qualify edge break. It’s not just a radius, but how well centered it is on the edge, and the geometry of the materials adjacent to the edge.

商店的地板测量边缘断裂和缺陷变得容易

该网络广播是边缘断裂和表面缺陷的在线演示。

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4D InSpec

4D InSpec在工厂地板,机械车间和现场服务应用中,提供了表面特征和缺陷的非接触式测量。188bet娱乐平台

4D InSpec XL

像4D Inspec Standard一样工作的手持缺陷检查量表,但具有更大的视野,以测量更广泛和更深的功能。

Inspecec配件

Accessories for improving portability, ease of use, or for accessing hard to reach measurements like sidewalls and through-holes.

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