Long cutter for key slot

Contents

Table of contents

Introduction

Task # 1. Roller roll-out

Task No. 2. Long cutter for key slot

Manufacturing process of long cutter

Conclusion

List of used literature

Introduction

In this course work, it is necessary to design 2 types of tools: a roller roll-out and a long cutter for key slots. The volume of tool output in both cases is 10 pcs. Per year, the volume of part output is 1000 pcs. Per year, the material of the processed parts is steel, the material of the tool cutting part is fast-cutting steel, the tool design is prefabricated and solid, for the rolling tool and long cutter, respectively.

Long cutter is intended for treatment of material at vertical construction. The cutters are divided into through two-sided with an angle of 45 degrees, slotted and for key slots. Vertical planes and curvilinear surfaces are treated with long-pass cutters. Grooves, grooves, recesses, planes with ledges and cutting are made by long-cut cutters. Slots of key slots made long by cutters are used for rigid connection of parts with shaft by key.

Manufacturing process of long cutter

Procurement. Cut the workpiece with the size of 115 mm.

Milling.

Mill the plane with a size of 14 mm over a length of 115 mm.

Milling.

Mill the plane with a size of 12 mm over a length of 115 mm.

Milling.

Mill the ends with a size of 110 mm.

Milling.

Mill the plane with a size of 6.5 mm over a length of 110 mm.

Milling.

Mill the plane with a size of 5 mm over a length of 110 mm.

Milling.

Mill the plane by holding the angle 10⁰

Milling.

Mill the plane with dimensions: 8 mm at a length of 25.77 mm; 10 mm on a length of 70 mm.

Milling.

Mill the plane by holding the 8⁰ angle.

Milling.

Mill 2 planes with an angle of 43 at a length of 40 mm.

Milling.

Mill the chamfer 4 with a size of 1 45 ° mm.

Thermal. Tempering and vacation.

Grinding.

Grind the faces with a size of 2 mm.

Sharpening.

Sharpen the main front and rear planes with 8 ° and 10 ° angles, respectively.

Coating of TiN.

Apply a protective coating of the TiN on the surface of the teeth by PVD.

Control.

Marking.

Packing.

Conclusion

As a result of the work done, a cutting tool was designed: a long cutter for a key slot.

The grades of high-speed steel for making this tool, the hardness of the material of the cutting tool, the material of the wear-resistant coating, the field of application, marking, geometric dimensions and technical requirements were determined. Also, a technological process was drawn up for a long cutter, a blank was selected.

Долбежный резец для шпоночного паза(А1).cdw