• Collage_Schwenklager_Slider

Swivel bearing / steering knuckle

Hub carriers on the rear axle and swivel bearing on the front axle are responsible for carrying the wheels and crucial to driving comfort and safety. They act as mounting points for the wheel hub, brake disc, brake caliper and suspension arm. Their design differs depending on the axle concept so as to meet specific vehicle requirements. The components must be capable of bearing high wheel loads and are therefore made from strong, corrosion resistant materials such as forged aluminium or spheroidal cast iron. Their robust design ensures the vehicle’s effectiveness and safety.

Swivel bearing brake housing with labeling

Highlight aluminum machining

  1. Thrust strut, camber strut and tension strut
  2. Main bearing bore
  3. Pre-machinig of main bearing bores

Features and machining requirements

Aluminium, with its combination of high strength and very high flexibility, is the ideal workpiece material for safety-critical components that also need to be lightweight. These properties make it the perfect choice for unsprung masses.

  • Forged aluminium or spheroidal cast iron
  • High demand on quality as component is safety-relevant
  • High quantities
  • Close position tolerances
  • High process reliability and dimensional accuracy

  • Long chipping due to wrought alloy and forged/ heat treated
  • More difficult tool accessibility depending on clamping fixture and number of process steps
  • Machining in a clamping system
  • Multi-spindle machining or custom machines

1. Thrust strut, camber strut and tension strut

Kombinationswerkzeug_Schwenklager

Combination tool:

  • Fine machining of close diameter tolerances with long projection length
  • High shape accuracy due to precisely ground blades

1. Drilling from solid

  • Cost-effective drilling from solid using QTD indexable cutting edge

2. Fine boring + bearing seat machining

  • Fine machining of bores using pad-guided fine-bore cutting edges for tight tolerance requirements

3. Reverse machining

  • Reverse circular milling of chamfers with replaceable tangential inserts

2. 主轴承孔

Hauptlagerbohrung

金刚石铣刀
  • 使用一把刀具即可完成所有直径和 轮廓的精铣，缩短了生产节拍时间
  • 短切屑的工艺可靠切削加工

3. 主轴承孔的预加工

31195107.1732.jpg

SPM金刚石铣刀
  • 适于加工开孔或型腔
  • 硬质合金或者焊接PCD结构

Swivel bearing made of cast iron with labeling

铸铁加工亮点

  1. Connection steering arm
  2. Milling machining
  3. Connection swing arm/suspension arm
  4. Main bearing bore

特性与加工要求

与铝相比，这些材料成本更低，但比重更高。铸铁耐
磨并能承受高负载。

  • 锻造铝材或球墨铸铁
  • 高质量标准，因为它是安全相关部件
  • 大批量
  • 严格的位置公差
  • 高工艺可靠性和尺寸精度

  • 高磨蚀性
  • 根据夹紧装置和工艺步骤的数量，刀具的可 接近性很困难
  • 通过正角切削刃几何形状减少切削力
  • 适配的切削值
  • 受控的断屑

1. 转向拉杆/转向臂的连接

Anbindung_Spurlenker

盘形铣刀
  • 切向技术带来工艺可靠的铣削
  • 每个可转位刀片有八个切削刃， 可实现经济的切削加工
  • 减振器可减少振动

2. 铣削加工

Fräsbearbeitungen

NeoMill-8-方肩铣刀

  • 方肩铣削时实现最高的经济性
  • 每个可转位刀片有八个切削刃， 可实现经济的切削加工
  • 切削深度可多达 8 mm

3. 转向臂连接孔

Anbindung Schwinge

锥形铰刀
  • 通过导向条和可转位刀片的μm级精度调整， 可实现最高的精度
  • 可转位刀片技术可在选择切削材料时提供最 大的灵活性，从而优化刀具使用寿命和表面 质量

4. 主轴承孔

Hauptlagerbohrung_Gusseisen.jpg

1.预加工
带有可转位刀片的镗刀

  • 带有短刀具夹紧杆的精密镗刀
  • 快速简便的互换性带来高度灵活性
  • 大调整范围的调整选项

2.半-精-加工
安装可转位刀片的镗铣复合刀

  • 通过采用切向技术实现高性能
  • 使用短刀具夹紧杆可实现快速、 简便的互换性以及很高的灵活性

3.精加工
HPR400 高性能铰刀

  

  • 工艺可靠地加工大直径
  • 操作简单，无需任何调整
  • 高精度：使用钎焊铰刀实 现很高的精度